Currently looking for a low profile mouth guard for BJJ that won't gag me out or make my lip stick out. I came across these and I'm wondering if any of you guys have tried them? I found a few reviews on Sherdog that were generally positive but said that if you take a solid shot to the mouth it might make your lip bleed.
They were previously Protech Dent, now called SISU mouth guards.

Thoughts?
They were previously Protech Dent, now called SISU mouth guards.

Thoughts?