I have an old Timberline. Same model as in the gallery, pg.9 @ the bottom. A friend of mine put the bug in my ear, and now I'm obsessing about this idea. I'm thinking of cutting out sections of the cast doors, primarily the upper mountain castings, removing some material inside the cut-outs for glass inserts, and tapping in some clips to keep the glass in place. The areas will be fairly small, no true benefit except I'll get to see the secondaries lighting off before the glass gets too dirty. Talk me out of this! Tell me that the castings will probably crack, or something. Anything. I warn you, I'm stoopid, and I'll do it! Would be cool to see the fire dancing through the glass in a mountain pattern though. Help.