I'll answer #2 first:
Reverse Kegels is a bit of a misnomer. It's actually the relaxation of the muscles surrounding the base of your penis (the part that's in the body), and the prostate (according to some). These are the muscles responsible for contracting the penile base to make your rod harder and also contract during ejaculation.
Relaxing these muscles is best done, initially, by feel. Get at least a 50% erection, dig your finger into your perenium (the area between your asshole and your ballsack) and feel around. You can feel the structure of the muscles inside your body that surround the base of your cock. Now try a Kegel. You should feel those muscles tense and bulge. Now do the opposite, relax them completely. Focus on keeping them relaxed even to the point where you can keep them relaxed while playing with yourself a bit (difficult at first, but you can train these muscles to respond only to your commands if you practice regularly). That relaxing is a Reverse Kegel.
Benefits: I have read a number of posts here by guys who keep these muscles completely relaxed while jelqing, stretching, etc. (and I've read many others who contract them, so it's a matter of personal preference). Mainly though, I think reverse kegels will give you ultimate control. Don't want to come? Just don't contract them. Want to come? Then Kegel like crazy. That kind of thing.
I don't have any sample routines, maybe someone else can help with that.
A nice description of what a final goal of a reverse kegel should be. Most people find it easier to inflate that region and that is what was commonly known here as a reverse kegel, but what you just described is a final goal and how should it be implemented during sex etc.
While the reverse kegel inflatation movement haves it uses it is more for the balancing those muscles when done outside of edging and sex.
So it boils down to this:
Reverse kegel is an exercise that does two things:
1) When done outside sex and edging by doing it as an exercise it brings balance to your pelvic floor.
2) When done during sex and edging it is mostly to teaches you how to relax those muscles in order to last longer. A final goal in reverse kegel during sex isn't to inflate the pelvic floor as you do it during the exercises but to teach you how to make the pelvic floor kinda "drop down" and become soft.
Many people make the mestake by doing the REVERSE KEGEL MOVEMENT during sex when they actually inflate the pelvic floor, most of the time that only provokes ponr faster.
When people actually say that they are holding a light reverse kegel what they are doing in fact is relaxing the pelvic floor and concentrating on it. I noticed that this is the source of confusion for those who are new to reverse kegels, at least that is how i see the reverse kegels now, somebody will correct me if i'm wrong.
Also a very important observation is that for most people with premature ejaculation issues whose pelvic floor is almost always tensed by default in the beginning there is not much difference between the relaxation and infaltation because these musces are so tensed. Only after adding a revese kegels in your routing will the balance of the pelvic floor return and you might be able to really relax that pelvic floor.
About the benefits as i told:
When done outsied of sex and edging as an exercise and not as an manouver it helps to bring balance to a pelvic floor which in return lovers the tension and the unconunsious kegels.
When done during sex and edging as an manouver it makes you consciously relax the pelvic floor. When done more forcibly and stonger it can also bring closer to PONR, or can help people to pinpoint a moment where one should kegel for a dry orgasm. In other words as you are on the ponr or close to porn, hold a medium reverse kegel (inflate) and continue the stimulation and when you feel you can hold it no longer instead of releasing it, use that momentum for holding a strong kegel hold and it will result in DO since the timing is forced to be between the reverse and the regular kegel. One should do this only when he's penis and pelvic floor is more conditioned and when one can hold a strong kegel for at lest 10-15 seconds.
As for how you do them, visit the link in my signature and read it there.
As for the routine. Try to do them in ratioes. For examile if you do 100 kegels then do 50 reverse kegels, or you can try to do 100 kegels and 100 reverse kegels and then lover it down in time.
This is an observation that i made on that subject i wanted to write about it in my log but since i'm already here...
I noticed that kegel muscle group or whatever should be stronger than a reverse kegel muscle group or whatever but for the premature ejaculationist that ration is way of. So maybe a good routine will have a 1:1 ration of kegels and reverse kegels in the beggining and then slowly lowering the amount (but keeping it in ratio) reverse kegels.
For example a ratio of kegels and reverse kegels for the first 3 months should be 1:1, then 1:2 etc...
