Still trying to minimize sag and tearout on my bookcase project.
Doubled-up 3/4" plywood sides and shelves with 46" inch span and shelf
pins.

I am trying to choose now between Baltic Birch (13 plys) vs. Natural
Birch with poplar core. Baltic Birch is almost 2x the cost.

Questions:
- Will Baltic Birch give significantly less deflection?
- Will Baltic Birch be less susceptible to tearout on the shelf pins
under heavy weight?

I am going to be painting the shelves.
Still any difference in terms of surface hardness or paintability?

Overall, is Baltic Birch worth the cost typically?

Thanks