Here's a trick i done on mine, i put balsa wood in the aluminum channel to help elimanate the flexing of the tail section, i also made it into a taildragger. that helped with the cutting grass syndrome.here's some pic's of the tail wheel,it also steerable. look closely and you'll see it a sullivan tail wheel,i mounted a servo arm to the channel with washers ,then icut the steering rod from the rudder to the servo arm then i used a piece of wire(control wire works good)to connect it to a servo arm mounted on the tail wheel assembly, it works great.

keepem flying