Dave, That is exactly the set up we are using except I use an eye hook in the rudder instead of just a hook. No grass catching then.

I tried the glue hardner method and it was not enough. the tail wheel pulled out if the grass was not cut well, So I cut a 1" by 3/8" slot in the bottom fuse and put a small hardwood block in and a thin 1/8th " ply plate on the bottom to mount the bracket to.
No pull out now!
By the way, I flew 4 more flights that day without the tailwheel and still had perfect ground control.