Viggo,

While I understand your comment, Nill seems to have found the formula. I have only seen 3 sets of the Nill grips, but all fit as well as the originals. True: I had to trim up to 1mm off the bottoms of them to make them fit, but the critical areas around the top fit perfectly, without modification, in all three sets.

Nill specializes in grips, so I suspect that they simply take more care in their design.

Luke