Ok, I'm circumcised, so I don't know what your talking about. But for my two cents.
Bathmate give bigger girth at the bottom, and long time user end up with a bit of a cone dick. Not Much but still, very little gain in the head. So for foreskin it wont slow down the gain...
Anyway, when your in the bathmate are you not fully deployed and hard?
For my good friend horseymann, I just purchased a phallosan just in the purpose of pumping my penis head.
Get back with a review in a week.