I have used the Miculek for a long time, sold it with my rifle. When I got a new rifle I bought the Lantac, it's amazing.
There is a downside, the faster you shoot the better it works. So if you are a slow shooter it works as good ad the Miculek, but at a faster rate it almost pushes the muzzle to the ground. I like it a lot!
That's not a good thing.