All just opinions - Strike Industries Mass Driver Barrel Compensator

So,... I read other peoples reviews and I dont know why others are having issues with this product. This is my second one and I must say that these comps are the best I have used thus far. I have tried from cheap EBay to Wasatch Arms expensive, screw on barrel to accessory rail mounts. As far as a lighter recoil, no one can compete with this design. I have one for my Glock 17 and this new one for my G19..and both shoot vary easy and lite. I wish they had these for my 40 cal, which is harsh and violent to shoot, much worse than my 45. Even though the 40 and 45 bullets will dry fit through this comp, I have not tried to use it with these calibers.