I was in a very similar situation. I shoot my bow enough to know it wasn't form problem. I had made so many changes over the years that for whatever reason, my feathers were catching the rest. I just switched to the trap door and it's great. The one thing I did to make sure of better clearance was turn my knock 180 degrees so the single feather was up and the two were down. This made sure of my clearance and I'm shooting about 290 fps with a 2 inch grouping at 30yds. I'm happy with that.