I think the reason you had problems with your receiver was probobly due to not having the capacitors on your motor, The capacitors cut down on "noise" (not real noise but electrical noise) from the motor which can cause problems with your receiver.

Also you might check and see how far away your ESC is from your receiver, ive read if its too close it can cause interferance but ive mounted mine right next to my receiver with no problems so it might just be certian ones that do it.