Well you are correct insofar as being circumcised definitely would
reduce sensitivity, and by a substantial amount. I can just visualise you being extremely "pissed off" when you found out that having reduced the sensitivity, you ended up with exactly the same time to ejaculation (give or take a minute either way) even though it was no longer as enjoyable.
The significant part of what you post here is where you observe you "cant control it whatsoever, except to stop". If you can't control it, that should be telling you that the degree of stimulation has little or nothing to do with the matter. Specifically, if you slow right down in your thrusting and still
ejaculate after the same time, that would demonstrate the point.
What is interesting, is that your observations so well demonstrate the theme of a lecture I attended a few months back on "PE" (as well as the treatment of impotence). As Jim mentions, the normal
duration of intercourse from intromission to ejaculation, is something of the order of two minutes whenever actual surveys are carried out (which makes one wonder about the methodology - would these have been observed
acts of intercourse, or was the fellow thrusting away while watching the clock? Even if it was his partner watching the clock, would that not have interfered with the matter being observed?).
Now the other aspect here, is why men would (as the studies clearly demonstrate) have such a distorted concept of "normal" or "good" intercourse, as to imagine there was a "problem" with their time to ejaculation, presuming themselves to have "PE"? Of course, we have to address the (relatively recent it would seem) presumption that in order to "please their partner", prolonged coital thrusting is required.
are actually otherwise. Women may indeed be "hard to please", but however this may be, it is unlikely to be overcome by prolonged thrashing in the pubic region. If the young lady does not achieve an orgasm within the first couple of minutes, she is hardly likely to have one in the next half hour. More
likely, she may get somewhat jaded and "fake" an orgasm to terminate the enterprise. Actually, the majority of women do not
have an orgasm from penile thrusting in the vagina, but require some clitoral stimulation in addition (or indeed, instead), and this is a simple fact of physiology which cannot be overcome by thrusting harder, longer, or faster. If anything, the opposite; slower gentle thrusting may be in order.
And I do hope you are not acquiring any of your "information" on these matters from pornography ...