Replying to Another what size thread

So my caylors from two years ago are being warrantied they are size 181 i can get 181 or 191s now im 6'2 185lbs and an aggressive skier. I like skiing in trees just as much as open spaces that is the reason i originally went with the 181s. I know i would be better off with the 191s My question now is how is the maneuverability in tight areas and trees, also i do spin on occasion if im just messing around nothing bigger than a 3 or occasional 5 will i have any problems with spinning 191s? thanks