Engine question: I don't get much time to practice and work on gearing. I've been plagued with this Ninja engine, .12. It seems to be ok, temp wise, but it sure is a slug out of the hole with the gearing that I used. The same gearing on my Max power, the car is a bullet. I'm going to try dropping a tooth on the pinnions. Can anybody give me some input on the gearing for this engine....does it need to rev more? do I need to send it to Grinder? or do I just sell it and get another Max?