Yep i had both on there, but I don't think I made that many passes in that configuration.
Hoover has had both on there for a *while* now I believe, but they also don't drive their truck much.
Inconclusive results. I do think that a Sy doesn't stress them nearly as much as a Ty would. At your level, I'd hold off on the cal tracs, maybe just do the Flex a forms. I think they really help if you are hooking BIG time. Look what Tony has done on stock suspension. I think it's more about the power application and actual traction (tires).