Well the Lantac Dragon got about 300 rounds through it last night (usually would have been more but we were doing rifle and pistol transition drills). I am very impressed, I haven't used any other muzzle devices other than the AGW linear brake but the Lantac is head and shoulders above that device for muzzle flip mitigation. It was obviously louder than the AGW which throws all the boom forward but i didn't have anyone complaining. There was a slight concussion felt by the shooter but not enough to be distracting, in combination with the Geissele SSA i also just installed follow up shots were a breeze and groupings pulling the trigger as fast as my finger could work the trigger were smaller than 3" at 25 yards. I did notice that at 25yards the switch from the AGW brake to the Lantac required me to drop the reticle on my aimpoint by 9-10", which seemed excessive to me but i am admittedly inexperienced when it comes to changing muzzle devices and the change in POI that will have.