Personally I can’t offer you any solutions on how to comfortably use a compression clamp. I tried one for a couple weeks, and like yourself it was very uncomfortable, even painful!
Which is exactly why I invented the LG Hanger vacuum chamber.
There may be some guys on this forum who’ve had success and can offer some advice.
What is the difference between your hanger and a standard ADS vaccum one? What would make me feel if i owned it I could see better results?
Bathmate is still for sale. Also for sale is my thick wall penis pump with hose and gauge. (1.75) It works but drops in pressure, so you have to constantly monitor it and re pump. If you are mechanically inclined it is most likely a easy fix. $30 plus shipping fees.