....good job, glad to see everything turned out well...
I would only mention that, if you are gonna make a business out of this, that you might want to quiz the customers on the ambient conditions that they intend to drive in. For instance, you stated that your test was run at 65F and low humidity, which is a fairly detonation-safe condition.
You might want to worry about the customer who takes your program into the desert at 95F and runs it hard. Does your program have enough safety-factor built in to keep that customer from grenading the motor?