I've tried, made, and used the skinny strings for several years now.
My only experience is with D97, and TS1 or something like that, and the old fast flight.
I like the feel of the shot, better with the skinny strings. Especially better then B50. In most cases I've found them to be a little quieter. Don't know about wrist slap because I wear an armguard all the time....... whether I get wrist or arm slap or not.
But one thing I really dislike about the skinny strings, especially on heavier bows, is they feel as if they're cutting into my fingers, even when they're built up in the serving area to the same diameter of a standard size string. My son has mentioned the same thing...... that he feels discomfort pulling his heavy bows with the skinny strings.
Lately I've been making my D97 strings 14-16 strands just because I can. I ain't good enough to tell a lot of difference between them and the tiny ones, but they sure feel better on my fingers!