There is a reason why edgers should do kegel exercises, to launch the edged load as far as possible when the edge finally succumbs to the joy of ejaculation.
It is counterintuitive these kegels and edging. One would think that by using kegels to withhold urine, one could do the same with ejaculation. But that is not the case as noted in the original piece. It works the other way, that using kegels puts pressure on the prostate which actually induces ejaculation the whole goal of which is to avoid in edging. So when you feel you're going to cum, reverse kegel and try to push the cum out, that will stop the orgasm dead in its tracks.
Most phenomenon are intuitive, the other rest counterintuitive, intelligence involves figuring out which is which.
Stay edgy, keep it cum-ing, guys!