There are better ways to distribute, knocking can create layering in the puck which can also lead to channelling. But what you are doing will be better than tamping an offset mound.
Or something like the thing on the left?
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@Tijmen started
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There are better ways to distribute, knocking can create layering in the puck which can also lead to channelling. But what you are doing will be better than tamping an offset mound.