Go for it 8 inch +
I had a PA many years ago and, once I put in the right size of ring, it was very nice. The first ring I wore was way too big (in diameter) and pressed very uncomfortably on the upper side of the urethra - very painful after a while, particularly whilst driving, as you can imagine. Once I found the right size of ring (half inch internal diameter) it was very comfortable. Then over time, and several changes, I 'gauged up' to a heavier ring of about 1/4" gauge (thickness) and once I got used to it the feeling of it moving there was all pleasure. My gf liked it too. She didn't really feel it inside her during sex (compared to the ampallang I got later - another story) but she liked the way it looked and it didn't interfere with oral sex so it was all good. Eventually, curiosity got the better of me and I got a sub-incision, which is when you cut the thin skin between the metus and the PA to open up the cleft in the underside of the cock-head. Obviously, this means losing the PA, but it was the beginning of another adventure. Nowadays you could fly a small aeroplane through the place where I once had a PA

but it's all good. Best of luck. :wink: