I think the new PITTS have all the issues taken care of, BUT I would still pin the fiewall, no matter what size of engine.

Have seen PITTS fly with Saito 300's, MOKI 2.10's, etc...as far as I am concerned I like mine with the G62, other have been impressed too of the power and up lines.

I love to do full throttle snaps, she winds up pretty good, do as many as I can until she starts to tumble down and then into a flat spin........