Customer Rating: 
Summary: Clever design, firm guard
Comment: This is my second do-it-yourself grind guard (I tried the "Dental Hygiene" one first). Before that I have had over twenty years of the custom kind from the dentist, but they just got too expensive and my most recent one wore out too quickly.
The little tab on this one is an interesting feature. You hold it by the tab to dunk it in the hot water for shaping, and then lift it out (and the hot water runs off -- it's the water, not the guard, that can burn you at this stage). After you have molded it to your satisfaction, you cut off the tab. I didn't get a smooth surface at the cut spot yet, but it's good enough, and it beat having to maneuver it with tongs.
This guard seems to be a firmer "plastic" than the other one I tried, and I have hope that perhaps it will last longer. It took two tries, then I got a very good fit and it stays on well.
I do prefer the retainer style, that I got from my first dentist way back when, but I haven't had another opportunity to get one of them.
Good luck.
