I friggin' love the chamfer! Been looking for a pool cue with one for a while now. For years I thought it was for shooting a CB touching the rail so you could get your fingers wrapped around the butt and the rail didn't get in the way. Apparently not.
I like holding the cue in the same position every time so I hit the CB with the same section of the tip each time. If I'm hitting draw I'm hitting it with this part of the tip, right hand side this side etc. I find it makes it easier and more natural to release the little and ring fingers from the cue when the chamfer is facing the ground. I think I may have OCD though