Torsion bar/chassis protection idea..

Hi...well for so many year I had to put up with the marks that the metal tube that holds the two torsion bars together leave on the chassis.Even in new build models the radio box presses the torsion bars with the smallest movement of the rear suspension.Well I come up with the idea of putting the heat shrink tube that we usually use it in connecting wires.It looks good and give the protection I wanted...Have a look.!