I have a problem with the iS76. Adding a thick part, shaped like a ridge that sits under the foot, to the pads is an excellent idea and it works very well for the rear fot where the position the strap is moved along the high ridge of the pad.
On the font straps on the other hand the ridge is att an angle compared to the different strap position and to me there is only a good fit when the strap is moved all the way forward and also made really big. With the straps in the rearmost position the high ridge instead ends up att the toes and gives a rather odd feeling and the foot does not feel secure in the strap. I'm I missing something here, or what is the idea behind the position of the higher ridge at the front straps?