I bought the first lot of sanyo 3000h (waste of time & money) anyway looking yo buy GP3300 unmatched, whats the diff between GP3300 green/yellow & GP3300 red, is it fair to say most racers are using green/yellow, don't want to buy wrong ones again, have noticed not may racers using Sanyo 3300HV black cell why is this, are they a bad cell also, are Sanyo 3000HV any good, gearing up for stock next year, any info on this subject would be helpful, thanks luke.