I finally got a chance to check out a SS. That machine is BAD A**!! It's not to comfortable for my 6' 6'' frame & 36'' inseam. The strange thing is I sat in both models. The SL had a little more legroom than the Base model. The salesman couldn't understand why. I had both seats pushed all the way back & the tilt wheel all the way up. It's harder getting out of the SS than a C4 Corvette!!