My CRRC26 is screaming with the 16x8 on it. I wouldn't want to go any smaller. P-factor is minimal with that prop. And it doesn't use a lot of runway. I think the wing loading is less than the smaller versions. It flies fine at 80mm and the recommended elevator throws. The weather has been bad lately, not much flying. I did take the H9 Corsair out for a quick test flight last Sat. Toe-in is an option. I haven't had enough time to really work out the proper amount of rudder/throttle for takeoff. I should go to the field and do about ten takeoffs in a row to work it out. The tail pops right up on throttle up. Just need to get the air moving over the rudder. A few clicks of up trim would hold the tail down for a bit, but I don't want to be messing with the trim every takeoff. There is a sweet spot somewhere. If I wanted "easy" I would fly my 33% Extra260. It just launches with the ZDZ80 on it. Hardly uses any runway. I like the challenge of doing it right.