When used correctly, the playing surface of the record is flat to the platter and not dished.
Using the VPI threaded clamp and azimuth change
I am using the VPI threaded delrin clamp that came with my classic 1. It is stated that the threaded clamp is to be used in conjunction with the rubber spindle washer. When it is used this way, it seems like it would negatively affect the azimuth setting. When you screw down the clamp and tighten it against the rubber washer, it does force the outer edge of the LP downward to touch the platter. This causes the LP to have a slight downward dish appearance. When I have set my azimuth on a level surface, does this not cause the azimuth to be out of alignment? Do I need to set my azimuth canted a bit to the outside of the platter to compensate for this effect? How are you VPI users adjusting for this?