HI Thanks for the reply.

Spectrum it is then. Stuff has really moved on (failsafe on each channel!!!!!!)

A budget...well don't really have one. If speed controllers that will be up to the job to handle lipos and the torgue from a drill motor are £50 or £100 each then thats the ones i'll need to get, just wont be buying everything at once. I suppose cheap is good specially if they are going to get smashed up but I won't cheap out just for the sake of it.

The spinners now adays are great! look as if no material will survive it, so 3mm aluminium base plate, 25 mm HDPE sides? with aluminium top? my design will be curved so i'll need stuff that bends easy'ish