I can just give an opinion on the one I had for review several years ago. The one I had wasn't gritty at all. Maybe not as smooth as a 110, but there wasn't anything that bad about it that was worth noting in my review at the time. They don't have a front baffle on them, so having less lug area riding in the raceway could allow it to bind up a little easier if your putting excess pressure on the bolt in a given direction.