@olderandwiser, I'm in my mid-70s. I wish I had your problem of leaking pre-ejaculate. I had radiation treatment for prostate cancer 20 years ago and a TURP 10 years after that. I am not sure of the timing, but I think after the radiation but before the TURP, my ejaculate gradually dried up so that when I masturbated to ejaculation the amount was greatly diminished and it was watery. I probably should have asked the urologist what was happening, but my guess was that whereas the radiation had killed off the prostate, the cowpers glands were still producing pre-ejaculate which was only being expelled during orgasm. A subsequent salvage prostatectomy has left me impotent, and unlike some of the commenters on this string I have never been able to reach orgasm with a flaccid penis, even with an expensive Viberect penile vibrator concentrating on my frenulum remnant.