Don't know if the tailwheel is weak or not, but I don't like the stock setup so this is what I went with...



A little extra light ply is used inside the fuselage where the tailwheel mount attaches (with screws). The natural wood is light ply covered with thinned epoxy, then glued to the fuselage. It gives the tailwheel assembly a little bit more space to clear the rudder. The music wire is then run through a sliced up fuel tube bolted onto the rudder. And the actual mount is attached with wood screws. I've found that this setup works great if you're flying off a grass field.