Most definately,I probably won't stain tell spring as will be using oil stain,unless I can use one of my Buddy's shop.
I did experiment with some diffusors made out of EPS(styrofoam)and I liked what they did and it didn't smear the stage.
Everything opened up
Have read that painting EPS with a latex paint makes them sound better,which I believe it would seal the surface so more diffusion I would think.
I have played percussion for years and I 'm thinking wood diffusors would sound better than EPS or cardstock diffusors.
Take a wood,metal,acrylic,brass,snare drum they all have a totally different sound,I'm thinking with sound arriving at the diffusors that the material used will have some effect on the sound,perhaps not much but I'm sure some.
Anyway looking forward.