Well, I installed the rest and shot a few groups at 10 yards. My backyard is only 30 feet deep so 10 yards is all I can do here. The rest works GREAT!!! VERY quiet, I like it better than my WB. My girlfriend joined me outside as I shot and even she could tell a difference in the sound. Arrows seem to have picked up some speed as well. A trip the Pro shop will confirm this.