When I dropped from 16 to 15 many years ago my carry seemed to improve. I believe it was because my rev rate and ball speed both increased allowing me to stay in balance between speed and revs. Recently I dropped again to 14. My carry dropped a little on some conditions but not bad. There is another young guy in our league with a great power release but throws 12 bs due to wrist problems. His carry is very good but he is rev dominant which causes him problems on flatter patterns where he needs to stay straighter.