I'm about to modify a bicycle seat to put a groove through the center so it won't press on my perineum. So now I'm wondering just how wide the groove has to be. My (male) perineum seems to be about 3-1/2 inches wide. But how wide is the part that contains the important arteries and nerves?
There seems to be an area in the perineum that bulges out. You can feel it when you're erect. It runs down the center of the perineum. This bulge seems to be only about 1 inch wide. So I'm wondering if that is the only area that contains the vital nerves and arteries, and therefore a 1 inch groove will suffice.
But what about the prostate? How wide is that? Does the rear of the groove have to be wider to avoid putting pressure on the prostate?
Grooves in commercially made seats seem to vary a lot in width. I don't want to make the groove wider than it has to be because the wider it is, the less surface area there is to support my butt. What do you think? Any urologists out there?