as for tensions offered by carbon tech
yes they do make low, mid, and high tension reeds, but for the 700 tripple motor they only make one tension (370lt, light tension), this inc's sx, sxR, vipers, and the srx, and it is only offered as a recomedation in low tension, all the ht (high tension) reeds say poor low top end only not recomended. carbontech doesnt offer mid tension reeds for the 700 motors. the 370lt's offer huge fuel mileage for cruising, but as for playing/racing and full throttle clutch testing, in my experience (the srx only) they flutter and do not shut properly at wfo. this adds a variable that you cannot feel in your clutching only side by side testing of duplicate sleds told the tale of the tape. 2 identicle 01 canadian srx's one full stock never touched, & mine with carbon techs and tempflow, stocker would pull away mid and top, (and that pilot weighed more than I) switched stock reeds, pulled stronger clutched easier, and ran slightly faster mid and top, (not much mind you) mostly pilot weight and proper jetting with the flow helped. my .02 ski