Not a problem:
I've changed my glyphs since I started 3.1. I was using the IBF and Unbreakable Armor, but IBF is getting changed so that it no longer gives a bonus 10% damage reduction, and Unbreakable armor's glyph was never that good. I went with two Damage increasing glyphs.
I'm sorry for such a late response - I just haven't been on as much, since 3.1 has come out. Busy raiding ^^;;
The link you posted in the 3.1 Frost Tank Build of the build you're going to use since the 3.1 changes doesn't seem to work. Would you mind relinking for me? I've been using you as a guide/goal for when I hit 80 until I finally gather the street smarts of theorycrafting and the math it involves. I'd very much appreciate it, thank you!