Hello Blumby
If it works for you, that' great mate.
I've used both and I reported what works best for me.

My discussion was about the most effective method.
I hope you appreciate my simple point - a solid but not rigid
large hammer seemed to cause a greater shock to break the taper.
Perhaps there is a scientific explanation for that.

It could be similar to how tower bell strikers work.
The bell is solidly mounted but not rigid. They pivot.
The Sound produced is a shock wave.

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Jack