No more than 2 classes for a club race. Especially when you have less than 10-15 heats. Each class takes at least 3 heats...one heat in staging, run your heat, then marshal. IF you try and race 3 classes on a club day that has 10 heats...you've got about ZERO prep time. That's great if nothing goes wrong, you don't break, or you don't want to make any changes..
I don't run 3 classes except for bigger races with 45+ heats giving me time to prep between classes. That's assuming you want to do well and actually work on the cars.
JMO.
