It’s amazing what you miss, preflight checking the same plane the same way each flight. It took another pair of rather more qualified eyes, to point out the rather high level of corrosion on our tail wheel assembly. The original assembly had been removed (see earlier Tail Wheel post), powder coated and rebuilt. This was fitted but unfortunately the torsion rubber seemed to be ‘weak’ and the tail height was much too low. Between the two assemblies we have enough servicable parts to go flying but would like to source a replacement rubber. I am not sure if this is an available spare part or maybe it could be fabricated.