The only thing I know is a friend of mine had it done at 30 years of age. He told me later he wished he had never done it. I am intact and plan on staying that way.
I have no problem with your decision and hope it works out for you. However, to call circumcision barbaric or refer to it as genital mutilation is moronic.
I once watched a public tv discussion on the subject. They actually had a support group of men (mainly gay) whining about their "loss". It was the most pathetic thing I have ever seen.