Thanks for the heads up on the Sig 1/4 Cub... I already own a .40 Mustang with a .70 4 stroke so I'd like to go up to at least a .60 size Warbird. I am leaning towards the TF P-47 .60-.91 kit. Anybody think that kit is too much for a first time builder? Oh, and I do have some flying buddies who could help me if I get stuck.