so I was at motorama this past weekend and used my 3.0nfor the 1st time. the car was good worked on it alittle each run because I found it alittle loose in the rear. aside from that I was talking to a fella and he said that I should move the esc to the rear and battery forward. so my question is what will this do for the car and whats the easiest way to figure out where to drill the holes?