First of all I agree with what MM says and don't forget to buy a castle link (If you buy it new it comes with a coupon for a FREE castle link) so that you can program the controller for Control line use,Which is very very simple to do!!. If you still don't want to spend the money look on the RC for sale boards as used and also NIP come up often for bargain prices,but the sell very fast so you cant hesitate when you see one. I've seen Edge lite 50's sell for as little as $35 and castle links sell for as little as $10 brand new. BY the way, Castle speed controllers also work very well with KR timers so, its money well spent no matter what.