I needed to replace a woodchuck that crapped out on me and decided to try the Arrow-fix. It does a very nice, precise taper. My only complaint is if the arrow is not really close to the size it should be, or the finish too thick, the arrow doesn't want to fit into the guides.
The fixing mechanism is amazing. You just can't believe how easy it is and the strength of the joint. It took watching the utube video to see how it's done, but is really cool. I have used wood glue and epoxy successfully, came out straight and strong.