Let’s be honest, all ejaculations are premature.
No sooner the sensations become good and they are gone, and so is the hard on, and then the party is over.
What does it say if a man agrees that the orgasm’s sensations are “too much” and that he “can’t hold back” and then he ejaculates?  It says he wanted to hold back but couldn’t, so therefore, it is a pre-mature ejaculation. That is virtually all ejaculations regardless of how long it takes to get to the orgasm. No one gets out of jail free on this one, if you want, but you can’t, then it occurred prematurely to what you wanted. Stud or not, when your orgasm lasts a few seconds, you are flushing your fun down the toilet. 
Men might consider themselves good in bed if the pre-orgasm stage lasts longer than the average man. That may be good for the other person’s pleasure, but it’s not good for the man because the orgasm part only lasts a few seconds.
Note; Good in bed means caring and sharing and clitoris attention more than thrusting. This is about making the orgasm last longer. 
It doesn’t matter how long it takes to get to the orgasm,  because getting there is just the journey, the prize is the orgasm, and if you ejaculate, you lost the prize.
Pre-orgasm is not orgasm so any effort to build endurance in pre-orgasm is just fucking  stupid. Let’s face it, every man knows what pre-orgasm feels like so if it felt good enough, men would just stay there? However, worldwide men have voted no, pre-orgasm is not good enough sensations to put in the effort, when there is a much bigger prize to be had.
Men feel vulnerable about sexual issues so it is very easy to separate a man from his money with a nonsense goal of lasting longer before the orgasm. Talk about setting the bar low.
The cures promise that you will last longer during the period when the sensations are unremarkable and exactly where you don’t want last longer.  That’s like paying money to wait in line, when you actually want to go in and enjoy the free show.
The 2 problems are that the orgasm only lasts a few seconds, and the orgasm is the only part of the sequence that feels good enough, to want to extend.
Lasting longer before the orgasm is everyone’s goal so why do most men fail? It should be easy to do, but the simple reason is that pre-orgasm sucks when compared to the real deal.
The only viable place to build endurance is in the orgasm but that seems impossible because the ejaculation happens soon after the orgasm starts? However that’s the key, the orgasm comes first and soon after we are forced to pull trigger for the ejaculation to occur. 
To find the endurance that you would enjoy, you have to activate the orgasm, but not activate the ejaculation. 
The Longasmmm method teaches orgasmic endurance by stimulating accurately, while distracting the ejaculation urge, so a man can accept and keep his orgasm, without allowing an ejaculation to occur.