Ok. Getting a little scratchy in here I have 2 t5m and one b5m have Schelle on on avid on the other 2 I like the avid a little better as it is a little simpler, they are both good and design is close enough that it is a wash in performance but they are both light years above the stock slipper. The spurs are actually round on the avid and Schell as to where I have found tight spots on ae spurs. Point being get a better slipper set up and you won't be sorry in my opinion it is the first thing needed