Alcohol dyes for baltic birch

One more follow-up question: any experience with combining alcohol dyes like this along with etching/raster burns? Specifically, I’m wondering about combining with the borax or baking-soda techniques described here: Borax for Darker Etches

For the current project, what I really want is very vibrant foreground colors with a dark grey/black background… ideally with a minimum amount of detail work per item since I’m mass-producing medallions. As much as I like the alcohol dye idea, I’m a bit concerned that the colors will seep down into the wood far enough to make clean raster etching maybe not work super-well. FWIW, I’m currently thinking that my medallions will be made of 1/8" baltic birch.