Looks like a gimmick to me. I'm not having any of the issues it's supposed to correct.
What are you running that in? If something with a carbine length gas system, then lightening is taking you in the wrong direction. "H" buffers and using auto BCG's (because of the added weight) became popular because of timing issues in the carbines. Not saying this won't work, but IMO, a stylish non-solution to a problem with better less expensive solutions.
If you're using it in a middy or rifle, then enjoy. Hope it actually works for you.
Good Luck and good shooting.
Removing dollars from unsuspecting wallets....