@Hepps01:
The other thing that is important with Pine (as well as other softer woods) is the sap and moisture content.
There is a product called “Wood Conditioner” that can be applied to woods like Pine to help make the wood take the stain more consistently. I also know some painters that prefer to dampen the material slightly prior to staining. Going to a good paint store and talking to them would set you in the right direction from a preparation standpoint.
This was one aspect I think I prepared for. Most the pine I bought was “stain-ready”. Some of the smaller pine isn’t though cause I am a cheap so I might still get some wood conditioner if it’s not too expensive. End of the day it looking a bit bochy won’t ruin the game so I am not too stressed about it.
I started sanding with a rough/coarse sandpaper to smooth the edges and getting rid of any inconsistencies. Sanding by hand sucks, I recommend a sander if you can afford one.
Don’t know what I will do about the MDF board I have in the nation compartments… I read that it can be stained but I am not sure if I should just paint them. If they are going to look different and out of place I might do it deliberately, maybe paint an enlarged roundel image for each nation compartment.
Anyone had any stain experience with MDF board?