Rules question: what move for restraining someone?

Munin, coincidentally, that has something to do with why I didn't think this should be considered a "success" with something as easy to hit as a 7+. My resistance to the idea that any 7+ cool roll will get it done was further amplified by Paul T's description that "this is a long shot".

That provided a goal of saying, well, if a 10+ is the goal, then we need the stakes to make 7-9 worthy. Zoom out until you find them.

Yeah, that makes sense. FWIW, I'm a "bloody fingerprints" kind of a guy when it comes to a 7-9 on act under fire; Yes, you'll get what you needed, but with consequences that you probably didn't want. I'm also a fan of occasionally putting failure to achieve your goal as one half of the "ugly choice," as it's interesting to drop a big ol' "OK, but what's it really worth to you to accomplish this?" in front of the players and see what they do.