I like the way you have matched the on the curve on the block to make the glue bond nice and tight, and held it in place with the weight.

I have thought about doing something similar with a semi-hollow bass. I had the much less elegant idea to just roughly match the curve and slather the contact side of the block with polyurethane glue which expands as it cures to fill gaps. Yours will be a lot cleaner!

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