[Big Dave]

On-road testing is really the only practical way to test if you aren't Bill Gates. Besides we all operate on-road. If a person finds something that works on-road, everybody benefits.

In a three-week test you can be sure you will see every weather and traffic condition. Winds from ever direction. Yes, you can go overboard letting comparative testing strech into different seasons. My test season is mid-May to early September.

Yes, it would be optimal to rent Talladega Speedway for tests, but until you hit the lottery, that is simply not practical.