My reason for getting cut was a case of moderate phimosis, when the foreskin cannot be retracted without causing pain. I told my doc that I did not want to have it get stuck, so my date with the table was set. My surgery was not cosmetic nor hygenic, it was done with the intention to prevent damage to the glans, which happens commonly with some cases of phimosis.
Looking back over three years now, I do miss the extra fun while whacking, due to the special nerve endings in the foreskin, but did I want the extra pleasure to be a time bomb, waiting to go off?
ManWithAPlan, I went pro in masturbation last year,
, and I think that you cannot lose sensitivity with excess jacking.