I do tend to agree with the advice about landing technique, bearing in mind that conventional gear models do tip more readily than tail draggers.

I found that a little patch of 3M clear vinyl tape, the sort you use to seal hinge gaps, works reasonably well. Hard to see when applied, conforms to curves well, and can be replaced if you use a dab of "Goof Off" or "Goo Gone", or some other type of adhesive remover that will not dull the covering.