The few people that have ridden with me know that I usually hit the deck on several occasions per outing...and these guards are better than what I have before on the same bike (Cycras and Acerbis).
3 main reasons:
1. the threaded insert on the ends of the bar have a better bite than the expansion inserts all others use
2. mounting to the triple clamp top puts a cross stabilizing effect to mounting to is won't rotate as easily
3. the actual bars themselves are massive and it takes a LOT to bend them (not rotation, just altering them)
BTW, my bike is ~340lbs, and I'm ~275lbs, so when we go down, we don't feather-down