RE: Which biplane?
Honestly, I've been a biplane junkie for 10 years now, ( it sounds like a help group already)but anyway, I've built and flown the sig smith mini plane, GP pitt's special, Pica waco ymf 1/5 scale, pica buckman jungmister, sportsman aviation waco .30, herr eng. pitts, wattage pitts and the skybolt from GP. If you like vintage bipes, go with a buckman jungmister, if you like performance I would suggest the ultimate, ( I know, never built one but flew a friends) they fly smooth. If you want a bipe that flies like a sunday flier but can ring-it-out, get the skybolt or smith miniplane, the mini plane will require building skills and paitence. but a fun plane to fly. I now have a nitro models christen eagle on the boards with a 25cc gasser, should be just like the pitts I had years ago, but that's my hang up, bipes.