GP-10 was not invented in a boardroom. It came from 27 years of walking cultivation facilities, watching the same failures repeat, and asking: why is there no standard way to score this? JR Loza built the framework. Vince Harkiewicz built the system. The two wrote the book together.
JR Loza spent 27 years walking cultivation facilities. Not as a consultant with a checklist. As a grower, a manager, a forensic analyst. He watched facilities lose hundreds of thousands of dollars to problems that were not mysterious. They were operational. Measurable. Fixable.
The pattern kept repeating: every failing facility had the same kinds of problems, in predictable domains, at predictable stages. No one had built a standardized way to measure them. So JR did.
Vince Harkiewicz came to the same problem from the technology side. As founder of Grownetics, the cultivation OS deployed across more than a million square feet of commercial cultivation, he had seen what facility data actually looked like at scale. The gaps JR was identifying in walkthroughs matched exactly what the sensor networks were showing.
They met at an industry event in 2024. The conversation became a framework. The framework became Rule of 10s. The book and the company launched together.
JR Loza has spent 27 years in commercial cultivation. He has conducted over 115 facility audits across multiple markets and license types, from 5,000-square-foot startup operations to 200,000-square-foot multi-state operator facilities.
His approach is forensic: arrive, observe, measure, compare against the benchmark. No soft recommendations. No vague action items. A score and a ranked plan.
JR developed the GP-10 framework over a decade of active assessment work, formalized it into the Rule of 10s, and now runs the benchmarking practice full-time.
Vince Harkiewicz is an industrial designer, technologist, and the founder of Grownetics, the cultivation operating system deployed across more than one million square feet of commercial cultivation production.
His work at Grownetics gave him a data-level view of what operational failure actually looks like: not just on a walkthrough, but in the sensor logs, the EC runoff numbers, the HVAC load curves. The patterns JR identified in audits matched exactly what the data infrastructure was reporting.
Vince co-authored Rule of 10s and serves as the architecture lead for GP-10's data and reporting systems - ensuring the R-Score is not just a number, but a defensible, repeatable measurement.
One assessment. One number. A clear picture of where you stand and what it's worth to close the gap.
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