Unfortunately I cannot get this to happen on demand, so running with adb connected is not an option. I can only make it happen by using the app regularly for a couple days, if I do this I get the hang once every 12 to 48 hours. So I need something I can do in pure-mobile mode, something like the "Stackshots" from iOS would be perfect.
It seems like since I built the app myself, I ought to have more options than if this were just something I'd downloaded…!