I use to preach about expandables, not no moe. I had two fail me this year and lost a nice 8 pointer, just didnt get the penetration I should have. I am switching to fixed and never looking back. I did some testing with 4 blade muzzy's and some expandables. The fixed were burying all the way to the fletching and some even completely passed through my target, the expandables were consistently leaving 10" or arrow outside the target.
All I did was screw the 4 blades on my arrow and they shot dead on with my points and my expandabes. I didnt have to tune one bit. That was amazing.