I have twins B-3 and G-3 my daughter is on a Quest 65' , tournament bst 3.5 at 32off , she was on the Radar Vector Boots[open toes] , I got a size 8 mens Radar Viper[Miami Nautiqe] on here front boot and left her Viper on her back .... she did not like it the first 2 sets , she complained that it forced her forward foot forward or on the ball of here feet . Yesterday she ran 2 back to back 32s at 34mph . We ski up in S.E. Michigan at Tivoli and some of the high end guys in our club tell her to 'patient in the turns and let the ski come around and give the handle to the boat-fully extend . If your ever in Michigan please bring her out and ski with us . 810-813-8423