Is it as effective as our AT15 brake? NO but the AT15 brake makes great fireballs that the LFE does not. Different intended purpose.
With no scientific data to back this up, but from shooting both a lot I would suggest that the LFE is about 20% as effective for muzzle climb control as our AT15 brake is.
This is still better than most other prong style flash hiders on the market offer by a long shot.
It would be awesome if ATRS could produce a "Battlecomp" like device. Lots of them out there, including spikes tactical "dynacomp"
You can use a rifle as a doorjamb or paperweight, but that's not what it's designed for. It's not what the rifle, in its soul, longs to do.