I need to lighten my x1 CRT

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I've got a pair of 5s 3000mah zippies in a parallel config for the long mains.. 20mins is easy in my brushless 8ight-t, but I don't think I'd make a 30min main. You have to take at least 3 pits in a 30minute anyway so just make 1 pit for a battery swap and call it a day. Most all clubs allow this w/o issues. As brushless setups warrant full classes you will find they split the a-main into two 12minute or two 15minute instead of 1 long race so I wouldn't go too crazy w/ setups and purchases unless money is no object :)