I use a 11 x4 on mine as my OD /46sf has trouble turning the bigger props. Wjile the SSE does lands nice and slow you really have to have it throttled back way before you make your final turn my SSE will maintan flight speed a few clicks above idle. Also have you used the flapperons on your SSE it will sink when you hit the flaps so be sure to hold some up elevator (or if you have a nice computer radio just mix it in) they also will help slow the plane down for landings.