Lantac "Zero Recoil"Advanced Muzzle Brake

Have not had opportunity to employ the device yet but have a criticism right off the bat! NO device which requires specific alignment, such as alignment to "top-dead-center", should rely on a so-called "crush washer" to achieve that alignment! The probabilities of accurate alignment are near zero. The rather expensive device should include "peel washers" which allow for individual fitting... having said such, PA was willing to accommodate any resolution I might have suggested, but the easiest fix was to get the needed washers from a friend and attach the WELL MADE device. Also, the arrangement of directional ports on the ZERO RECOIL brake appears well conceived and I am comfortable will work well! PA customer service is second to none.