Yeah, I know the FAI equipment is popular, but I prefer how my designs fly. There is a lot to be said for a little more weight from a .25 over the .15's as well. It is good to see how popular FAI is now, and I understand using leftover equipment, but I do not fly FAI. In fact, I am buying a new FAI engine, just so I can get into .15 Fast. I am currently running .25 Magnums and OS FP's