I disagree with you, we have a very high hp 10mm cub that is ran hard, going on 4 seasons now and the motor has not dropped 1 psi in compression, nor been opened up once. Its all in the build and tuning, obviously yours was not tuned right. IF you had the carbs setup for alchol, and checked your plugs while still in tuning phase you would not have blown it up UNLESS the motor was not put together right from the start.