I think the difference with the Brooks cantle plate is with how the edges of the plate pull away from the leather at the perimeter of the plate, maybe giving the leather more of a chance to flex downwards when the rider sits on it. Why Berthoud did not copy that, is puzzling as it would have also helped to stiffen the cantle. But I have seen a lot of positive reviews of the Berthoud already to think that it should generally give as good or better ride than the Brooks. I'll find out this srping when I get to ride my Berthoud equipped bike some real miles too.

Chombi