Heya Stealth Man,
It does lock, to a degree, but if I tighten it a fair bit, it slips back, so I think it could stand to be about 1.5 to 2.0 times as strong. Other than that minor quibble it works really well. In all honesty I think this would work better for most guys than the snaps. Adjustability is key, and really handy.
How are things going on your end of the world? 🙂
Also, any new items to try out?