props

i use 12.25 x 3.75 and a 12 x 4 apc. both work well.

i think your going to enjoy the extra the only problems that i found with it was that the firewall was pre drilled and the holes didn't even come close to lining up so i altered the engine mount to fit.. after completion the model came out very tail heavy and took about 3.0 oz in the nose to balance the model according to the plans. after flying the extra a few times i started removeing lead and i now have about 1.5 oz in it. The plans give a range of 3"-3 3/4" my personal oppinion is that the range should be alittle closer to 4"-4.25". again this just fit the type of flying that i enjoy i would reccomend starting in the reccomended range to start but i think you'll want to remove some wieght after a little while... hope this helps i know the magic has taken the # 1 spot in my hanger .......this plane will do some very good knife edges!!!