My question is this....Do you have a throttle stick on your radio??
Then the answer is simple.... .074!!!!
Not enough power will leave you feeling empty and cheap. You will find yourself wanting to sell your little "problem child" to get something else. BUT!!!!! Too much power can always be controled to give you that "Oh my goodness" feeling. You aint got a hair on your ***** if you don't push the envelope and go with the .074. IT'S A RACER FOR CRYIN OUT LOUD!!!
That is all.