RE: Matt Chapman cap 580 .40 size
I have one as well... I built it last weekend and am waiting for some good weather to fly it... has a 61fx(fully cowled) with brisson pitts all 3151s. Ill post pics and a summary on how things go after I get to fly it.... Its a cool plane, but im thinking it will be a missile on landings... we'll see... Good luck with your own builds.
scaleman