1st trick, shorten the rope so you have to pull the string back by hand a few inches to get the 2nd hook on. W/ your Horton, just turn the hooks upside down and voila! They clear the safety. You do want the hooks tight to the rail. If you use the rope cocker to uncock, you will want to be doubly careful one or the other hooks does not slip off the string since they are upside down and you have gravity to deal w/.