Compared to the sketchy stock Yamaha shift action, there is no comparison. Geez, even I can tell that the Yamaha shifting is pretty notchy. A couple of questions to Yamaha mechanic guys. The Yamaha's shift action is notchy. Always been like that.
Rider complains a lot on some tracks.
We don't know how to make it better. Instead of dreading quick downshifts into low speed corners, you can downshift easily, without additional thought being directed to shifting, leaving more mental energy left to devote to race strategy. MUCH better downshifting and improved upshifts. The Factory Pro Microbearing Detent Arm reduces the rotational friction so that the shift drum rotates quicker - the gears engage reliably under quick downshift conditions. By decreasing the number of missed shifts, shift forks and engagement dogs last longer.