Colleagues: Hope my explanation makes sense!

Saw post on another site that suggested using glue blocks on a 45-degree miter. Glue the blocks to stock, let glue dry, then glue and clamp the miter together. When the glue cured, use a chisel or flush trim saw to remove the blocks and a block plane remove any remaining glue block or glue.

From the Back- in-the-Last-Century part of my memory bank, I recall something similar.Glue A piece of brown paper bag between the work and glue block. When glue on the blocks and stock cured, apply glue to the miter, clamp, and let dry. Glue blocks and the stock were easily separated with hammer strike. Supposedly the brown paper bag residue was easier to remove. Also think hide glue was recommended.

Does anyone else remember or use this method?