For the tail wheel I chose the MK product for simplicity. It is fairly light and easy to install. The pinnacle has the horizontal stab incidence adjustment access hole on the bottom of the fuse in this area. The front hole in the picture is this access point. Just behind this point the pinnacle has a hardwood block built into the fuse to support the tail wheel. I placed the front mounting hole of the tail wheel over this hole and drilled an additional hole for mounting closer to the tail wheel pivot. The main hole for the tail wheel is a 1/4 inch hole for the pivot "block". The pinnacle has a hardwood block in this area built into the fuse. The tailwheel is simply installed with 2 screws and a pin in the rudder.