The main reason why I switched from the standard tailwheel to the Sullivan tailwheel is not so much for better taxiing steering response, but to protect my expensive rudder servo. With a non-spring tail wheel unit, a high-G ground maneuver can put great load onto the rudder servo. Even though my rudder servo is metal gear, I still wouldn't risk it.

I think my installation of the Sullivan tailwheel assy is worth your consideration. I carved out a 1/2"x1/2"x1.5" space in the balsa on bottom surface just in front of rudder hinge line. Then I make a piece of 1/2"x1/2"x1.5" basswood, drilled 2 holes and installed the blind nuts included w/ the Sullivan tailwheel assy. Then I epoxy the bass wood w/ the blind nuts. Once the epoxy dries, I covered the wood, poke 2 holes, and fastened the tail wheel bracket. I think it's one of the most sturdy and elegant method for opting the Sullivan tailwheel on this plane.