there you go again. i said not takin the piss, and advised you the tools needed to do it properly with precision, and you cant take it the right way. yet you feel the need to PM me and explain why you dont do this, and still you say the work you do works. not doubting that as you would not touch a high end motor. only way to get better is to use the right tools to do the job, and start playing a little at a time with the high end motors. once they are reliable, powerfull and remain tuneable and runtime, then can you offer advice. i have more of an issue with your advice on things you do not run.

if you dont know, let someone who does answer for help, not just chime in with dribble.