meh tried it for a while... A friend and I even made an audio cd for an astral projection "therapist" which included her scripted schpiel to relax the person listening, then have them slowly travel to the astral plane and all to the tune of some new age shlocky music my friend and I concocted.
Well I used it... and it didn't work but I gave it to this really hot babe and she thought it was great.
I ended up having a quick fling because of it, so I would have to say: Yes, astral projection works to get some sexy tail.