The T sport is only faster over 8knts if the crew weight is under 310. Sail the T at the same min weight at the N20 and you need to get over 12 for it to be competetive. My T has a tappered alum mast and I am not sure how much more power you get out of the carbon T stick. We sail our's at 365(crew weight) and going to weather I need 14+ to double trap. Anything less am I am footing way to much.