i have a rustler vxl i bought a year ago (used). and i noticed(after i ran through water) that the brushless motor shorted out. it had electrical tape on the wires. so i bought a new one. and now the esc is ruined. but i shipped it to a friend and he got it working!!! the only thing is he said it will only work with a 2.4 gz system. i dont get it at all. should i buy a 2.4 or try to get this problem fixed? thanks guys for all your help