Very nice improvement balindamood - certainly worth the effort !
PS- I've done this myself with hardwood blocks I fabricated for an almost identical dent in a TT - and if wood is to aluminum, as aluminum is to steel, then harder steel blocks will not make a discernible difference, since my results were that same as yours.
(I suspect the reason is that some proportion of the deformation in the metal is inelastic.)
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- Auchen