Oh, I have tried it. Be sure of that.
PSE is one of my favorite programs.
I don't usually use it during sex, though. I usually use it as an aphrodisiac. My ex was really highly sexed already, and she didn't need aphrodisiacs, so I didn't use it much around her, but the woman I dated before her really liked its effects. Not only did it turn her on, but she loved how it made me insatiable. When I was testing its effects on me, without her present, she thought that the resulting aggressive sexual responses I was giving to her meant I was more attracted to her, and we ended up having some awesome sex in some strange places.
It can also be used to sniff out who is most sexually receptive in a group. Whoever starts responding the fastest, and most obviously, is a good candidate for having a very high sex drive and a tendency to be aggressive about satisfying it. Played at parties, I have seen orgies break out a time or two. One of those times, I didn't get the CD back because the host's girlfriend was having too much fun with how it was affecting her. And him.
Typically, you'd want to use it for about 20-30 minutes before you start in on your partner for foreplay. In some cases, they may just drag you to the bedroom. But because it's not an instant result, you want to now how it affects them first, and then time your play to coincide with when you want sex to happen. Left on during sex, it does tend to enhance things... although it may also excite some people too much, and they might end up acting out of lust instead of thinking things through. That's a good way to have the person run away and not come back.
It also has to be understood how its results manifest, and how different people react to it. Some people will be able to ignore it depending on Mercury placement or activity being engaged in (too much focus on higher brain functions like mathematics tend to cause it to be overridden). Some people will be better affected by one volume than another. For some women, Volume 1 works better than Volume 2, for instance, because they may not understand English, or because they resent or resist "being told what to do". Used in conjunction with other potential aphrodisiacs, you may also run into the problem of too much sexual pressure.
My Theory of Sexual Pressure states that a woman will not always respond better to more pressure to sex. Beyond a certain point, she will tend to reverse her response as the ASD (the so-called anti-slut defense) kicks in. Then you may have a result, but it won't be what you want it to be. (This presumes a female partner, of course.)
Other women will respond beautifully and fluidly. I have found that personalities that are heavily based on Fire or Water astrologically (especially Fire or Water Venus and/or Mars placements) tend to respond very well to Volume 1, and even better to Volume 2
except where they are in a Fixed triplicity, which tends to respond to the script in Volume 2 with "don't tell me what to do". In which case, you'd want Volume 1.
The Eyeball Method strikes again. Very useful, gentlemen. Very useful indeed.
Naturally, you can't legally use these without the knowledge and consent of the other people, but they still make for some really awesome effects.
Testing seems to suggest that it affects male subjects in slightly different ways, and this is theoretically because men are so much more visual. It produces a very strong arousal in me, but at first, it's hard to know what the arousal is... I feel it in my chest, of all places. Then as it grows stronger, it becomes more and more obvious that I am in need of sexual activity and release. But it's not like any other sort of arousal I have ever experienced -- except from two specific pheromone forumlas.