I never said they were JAE's, they are JAE based, the rear shoes are removable, and as I said I'm a tinkerer, with no intentions of racing these (no local clubs anyway), just wanted to try somthing different, weight wise the parts only add about 2.5 oz. total, a lot if racing, but these are for play, and to try some different stuff. I never implied there were any problems with the JAE design. With the shoes removed and the stock sponsons in place I will be able to compare both styles, I'm sure my parts will probably be a bit slower, but wanted to try out some ideas! These are my first riggers, but I enjoy a challenge, and the boats can be converted to pure JAE in less than 5 minutes. I absolutly appreciate the help and comments/concerns though, thanks.