Back a few years ago when I raced non stop I had a battery and motor sponser and it mad it easier for everything else and I ran sedan and 1/12 electric in the winter and than went to nitro onroad and gave up dirt.I found it easier to concentrate on one class instead of running like 3 and 4 like I used to so I picked 1/12 helps out driving skills alot plus you get to run 8 min instead of 5. and before 1/12 helped my driving out more than sedan (carpet) for the oncoming season for nitro onroad