We had 5 cars yesterday, 4 21.5/lipo and 1 27t/4 cell. Guest driver on the 27t. good close racing in the heat races, for the main the driver of the 27t wanted to add a tooth. so we did, he was running up front until about 7:15 into the race, and then the batteries started to fade he wound up 2nd. So I think I'll go back the 5.53 fdr on it and just leave there for our track. All in all every one had fun and was laughing at the end of the race. Even the guy who destroyed his body. The idea that this is a fun class keeps everybody from being "I gotta win !!!!". I haven't had this mich fun "racing" for a lot of years. Great class, great rules!!!