I installed one on a HH blank a few years ago and it was fairly simple. I've read instructions for other systems and the Connexion is the only one I would try for a retrofit. As Fletcher said, you mount the hinge into position on the bow before cutting, so that virtually eliminates the chance for mis-alignment. You really need a drill press to get the holes right, and the riser should have enough width on the back side of the handle to accept the width of the hinge. I think the riser on the bow I did was bubinga, which was plenty strong. Some riser woods may not be strong enough depending on the draw weight of the bow. The one I did was about 54# @27 inch and was one of my favorite bows until I lost it in a fire. The hinge is really solid and is easy to take apart and put together. What bow are you planning to install it on?