Howdy, I havent flown either of the Bee's you mentioned but I built and fly an Adrian Page version with a Saito .91 in it and the only tricky part for me is the landing - you gotta bring it in with some speed on and fly it all the way to touchdown, there aint no "chop the throttleand flare it in" another thing; right after landing you gotta get on the elevator and feed in some up to keep the tail down or she'll flip over - If you want a great flying Gee Bee and don't mind not having the R2 I would reccomend the Pacific Aeromodels Gee Bee "Y" - it's bigger - a 120 size bird I fly one with a Saito 180 in it and it is a dream - great easy flying characteristics - slow, uneventful landings and it's sexy as He#L looks beatiful on a "show" pass - a bit pricey though ....