Yeah, that's what I do to prolong ejaculation. I just get close and then change position or interrupt, but I don't have an actual orgasm!
My problem is if I don't come on that 1st or 2nd ramp-up then it gets really hard to nut when I eventually want to. Once I've made it through a couple of close-calls then I can just go on forever. It actually gets kinda old because when I want to finish I can't.
Sounds awesome. Guess I've got a new goal...