OK, my findings...
Manscape is a must. Not once, a few times. I start a few days early if it has not been done in a long time. When you think you have everything, the next day do it again and clean what you missed. If you leave any, you will know. As itchy as the stubble is, the glue sticking to the stubble isn't much of a problem. If you leave hairs, you will know. After a few mistakes you will know what needs to be done.
My removal process hasn't been mentioned yet. Stretch, really stretch. Your (let's be generous) 52mm cath will stretch to about 500mm. That stretching also stretches out the adhesive making it much weaker. Stretch at a 90° angle to the shaft. The skin that is a little loose, gently roll that off the stretched cath. Work your way around. It turns into a no big deal.
As for the glue residue, generally not an issue but in a day or two it will collect a bunch of lint. Few little spots, not the whole thing. There are the wipes, never used them. Considering what I contact on a daily basis, WD40 is pretty mild. A little on a paper towel and the glue cleans right off, do it before a shower and you can wash the WD40 off.
Went from the first time I tried thinking "how am I going to explain this to the ER doc" to I can pretty much do it in a parking lot behind a car door and not look too disturbing. Although hitting a restroom and taking the privacy of a stall is better. The longer the better is generally true, but it will come off before I go to sleep.