The Benchmark

The performance framework
for elite commercial
cultivators.

The Rule of 10s is a revolutionary new benchmarking and scoring framework for CEA facilities and commercial grow operations. Built around 10 critical domains, it measures everything that matters and nothing that doesn't, so cultivation teams, owners, and investors can see where performance is created, limited, or lost.

Book A Strategy Call Join the Book Waitlist
115+
Facilities Audited
$360K
Avg Gap per 100 Lights
27yrs
Industry Experience
10
Operational Domains
What is GP-10

Everything that matters.
Nothing that doesn't.

Commercial cultivation is complex. GP-10 distills horticulture, CEA systems, facility design, team execution, and operational performance into 10 rules and 10 scorecards that make the business easy to understand, measure, and improve.

The R-Score shows where you are today, where you want to go, and where to invest your time, resources, and money for the greatest return. It turns the cloud of possible improvements into a clear prioritization framework, so you know what has to be fixed first before the next upgrade, process change, or crop strategy can fully pay off.

See the Framework
The Gap
$360K to $580K
per 100 lights per year
lost to operational inefficiency
Most facilities score between 4.2 and 6.8 on a 10-point scale. The R-Score shows where you are, which gaps matter most, and what each point may be worth.
What GP-10 Is Not

Not another opinion.
A benchmark.

GP-10 is designed to keep every conversation grounded in operational reality. It is not a replacement for expertise. It is the structure that helps expertise become measurable, teachable, and repeatable.

01
Not a Checklist
A checklist can tell you whether something exists. GP-10 shows whether it matters, how much it matters, and what it affects downstream.
Depth
02
Not an SOP Binder
SOPs document what people should do. GP-10 shows whether the operation is built so the team can actually do it consistently.
Execution
03
Not an Equipment Pitch
Equipment only creates value when the surrounding system is ready for it. GP-10 helps show which upgrades are useful now and which ones should wait.
Fit
04
Not Consultant Opinion
Opinions are hard to compare. The R-Score gives every improvement a place, every weakness a score, and every next step a reason.
Score
Who GP-10 Helps

One benchmark.
Different decisions.

The same R-Score creates value across CEA by giving everyone a common measurement system. It connects operational reality to the decisions cultivators, owners, investors, vendors, and service providers already need to make to reach the next level of performance.

01
Cultivators
Turn experience into a system the team can execute. GP-10 helps show which practices are creating consistency and which hidden gaps are limiting crop performance.
Execution
02
Owners & Operators
Know where to invest or improve before spending more capital. The benchmark prioritizes the gaps most likely to affect efficiency, growth, and profitability.
Capital
03
Investors
Evaluate operational risk with more than projections and promises. R-Score gives diligence a shared language for readiness, fragility, and improvement potential.
Risk
04
Vendors & Service Providers
Help clients understand the value of a solution in context. GP-10 connects equipment, services, and expertise to the rule they strengthen and the score they can improve.
Proof
The Plan

Get clarity.
Then close the gap.

01
Book A Strategy Call
Start with an on-site or remote walkthrough against all 10 domains. Document the current operation, equipment state, workflows, and SOP reality.
Assessment
02
Get Your R-Score
Score the facility against the GP-10 benchmark and translate the findings into a prioritized plan showing what to fix first.
Scoring
03
Close the Highest-Value Gaps
Execute the improvement plan with SOP development, team training, process redesign, and support focused on the gaps that matter most.
Execution
04
Re-Score and Improve
Use monthly reviews, progress tracking, and re-scoring to confirm the operation is moving in the right direction over time.
Continuity
Full Services Detail
1
2
3
4
5
6
7
8
9
10
7.0
R-SCORE
4.2
Industry Low
6.8
Avg Facility
10.0
The Benchmark
The Rule of 10s

A score that tells
the whole story.

The Rule of 10s is the framework behind GP-10. Ten operational domains, each scored from 1 to 10. The composite R-Score is weighted by financial impact, so the number reflects what actually moves the P&L, not just what looks clean on a walkthrough.

The Big 4 domains account for the majority of recoverable value. Rules 5 through 10 are revealed at launch.

Explore the Framework
The Framework

The Big 4 most models
do not start with.

The Big 4 are the first four rules we are releasing publicly. They explain why optimization often fails before the crop plan even begins.

Most models jump straight to climate, nutrients, irrigation, or pest pressure. GP-10 starts with the foundation underneath those decisions: the people system, facility design, water and fertigation, and medium and nutrient program. Get these wrong, and every downstream solution has to fight the operation.

Rule 01
Ego & The Human Element
The rule most optimization models ignore. Before you fix water, lights, nutrients, or equipment, you fix the people dynamic. The machine has to run regardless of who's in the room because every other rule is executed by people.
Rule 02
Facility Design & Equipment Selection
The most permanent decisions you make. You can retrain people, upgrade water treatment, and change growing media. But you cannot easily move walls, resize rooms, re-engineer HVAC, or relocate your pump room once the facility is built.
Rule 03
Water Treatment & Fertigation
The delivery system for every input. Water quality, treatment, mixing, and fertigation determine whether the crop receives the strategy you think you are running.
Rule 04
Medium & Nutrients
The foundation that defines root-zone behavior, nutrient uptake, labor rhythm, and OpEx. Your medium and nutrient program are not product preferences. They are operating model decisions.
Rule 05
Revealed at Launch
🔒 Published in the Book
Rules 06 through 10
Revealed at Launch
The complete framework is published in Rule of 10s by JR Loza and Vince Harkiewicz.
🔒 Published in the Book
Get notified when the full framework is published
Stay Informed
The Book

Rule of 10s.

By JR Loza and Vince Harkiewicz

The complete GP-10 framework in one volume. All 10 operational domains documented. The R-Score methodology explained. Case studies from 115+ facility audits across 27 years of commercial cultivation.

Written for the people who make the decisions:

  • •Owners who want to know what their facility is actually worth
  • •Investors who need an objective score before committing capital
  • •Cultivation directors who need the business case for what they already know
Join the Book Waitlist Learn More
Publishing 2026
Pre-order updates: [email protected]
Rule of 10s book cover
Chapter 1 Available Now

Start with the rule that changes everything. Free.

Join the Book Waitlist
The Team

Built by operators,
for operators.

JR Loza
JR Loza
Founder of Grow Perfect 10 ยท Creator of the Rule of 10s

JR is a commercial cultivation turnaround specialist with 27 years in the industry and more than 115 facility audits. He created the Rule of 10s after seeing the same failure patterns repeat across underperforming grows, distressed facilities, and teams that had talent but no standardized way to measure what mattered most.

27 yrs experience 115+ audits Turnaround specialist
Vince Harkiewicz
Vince Harkiewicz
Co-Author & Co-Founder, CEO of Grownetics

Co-founder and CEO of Grownetics, Vince has helped design and develop state-of-the-art crop analytics and high-efficiency automation systems for commercial CEA. His work focuses on helping facilities maximize productivity and yield while reducing the cost, complexity, and labor required to run at a high level.

1M+ sqft deployed State-of-the-art analytics High-efficiency automation
Full Team Story
Take Action

Know your number.
Close the gap.

The assessment gives you a clear picture of where your facility stands, what it is costing you to stay there, and which improvements deserve attention first.

Book A Strategy Call Read the Framework