Which Male Orgasm Control technique do you find the most effective?

The Ajna Chakra concentration is working very well for me. I just concentrate on the spot while masturbating and try to feel the sexual energy directly in the chakra. As i did a lot of qi-gong and other energy stuff before it was kind of easy to locate the spot. Together with a relaxed hip area i can stay now in hours of very wet pleasure without the usual feeling of loosing energy. Afterwards i am highly energized (but i try not to come yet i just stop). Thank you very much for this idear! I didnt try it with real-sex yet but i am confident that it might change my sexlife in a deep way if it works as well as in masturbation.