The high 90s. I will say however, that as one gets older as I have, one begins to appreciate the real thing, so it can lose its luster. Some men even quit masturbating so as not to train their climax to only happen that way. It improves their libido, stamina, and overall performance in bed. I once knew a girl who said her bf could never finish with her, he had trained his body to only climax by hand. So he retrained his body to be able ro release inside her as they both wanted a baby.