I changed to a WB from a Bodoodle Pro earlier this year. I'm still shooting aluminum and the only WB they had was for carbon and it wasn't the QS model but I bought it anyway and hacked out the hole. I was shooting pretty decent groups with it and was fairly happy with it other than some slight noise on the draw. They opened a new Cabelas in Buda (yes!) and I picked up a QS model for alum's. I suppose my surgery on the bristles was not as great as I thought because with the new biscuit I have to be careful shooting the same circle with multiple arrows. I love it. Of course it will need actual live hunting conditions to cement it. I was leaning toward a drop away but its looking like the WB may stick.