Patrick Olguin did say:

complete with carefully cut/milled/trimmed
square dog holes for a beefy iron bench dog.

And let's further say that as the wood seasons, the bench dog holes
shrink, making it impossible to use the beefy bench in the bench.

Better race right out to http://www.lie-nielsen.com and get those $275
rosewood handled chisels to widen the dog holes a skosh...

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New project = new tool. Hard and fast rule.