I love that story! I can't even FIND Sunny's... erm...part half the tme, it's so far in there! One thing...the smegma (the gooey, sticky, tar-like crud) smells to high heaven at times, and that smell does not come off your hands easily! Rub as much hand lotion as your skin can take in then lube. Scraping a bar of soap with your nails helps keep it out from under the nail area.
I never did find a bean in Sun, I guess some horses don't develop them! You can see if there's a bean without touching the sheath at all. Look at the stream when he's peeing. If it flares out, is two streams, is fan shaped there is probably a bean in there.
I figure if it ain't broke, don't fix it!