One thing I noticed on my TM was that after several flights
the foam joiner on the elevator was getting very weak, to
the point that only one side was flexing. I traced the failure to the hinge line being way to stiff. I simply cut the elevator and rudder completley off and the rehinged it with clear packing tape.
the surfaces are now able to move much easier and both halves of the elevator now move equally.

Regards,

Tim Hudson