I have been racing for around 4 years. Some of the people that have raced longer than that use to race 4min with 1200 and 1400 batteries, and some people have problems running 5 min with 3300? I have ran 10min endo race with 3000,s . I am sure there are time limits at some club races due to the number of racers, but this cant be the reason at most of the club races. just my .02 cents
