Great photos! And it sure is great to see a new succesful Socket-plug user. I still remember the thrill I experienced as it first slipped inside. I am now PA-pierced with a 3,2mm ring, awaiting my first PA Wand that will stay inside (after plugging for almost a year my plugs slipped out at all times...)
Hope your new SP will stay inside, don't remove it before you have to! And put it back whenever you're ready! I am sure your wife will feel the difference - my wife loved it
White buildup: quite normal, your body is a repository of diverse fluide, and white stuff is one of them. Wash/clean, I usually rotate the plug while pissing, that usually does the trick....
Keep plugging!