Check out the backerboard walls

Here are some shots of the backerboard attached to the studs in the shower area. Not the easiest stuff to work with by yourself especially when you have to raise it up. I used a diamond blade on my 4.5 inch grinder to do most of the cuts.

You can see from some of the photos that it becomes important when laying out your plumbing and electrical to not position them running through the studs close to drywall seems. If you do, and of course I did, and you can't screw off an edge it will tend to bow out a bit, making your end product look like garbage.

Another lesson was to make sure that your nailers and perfectly flush with adjoining studs if you are using them to attach the edge of a piece of drywall or Duroc too. This too can cause a discrepancy in your tile or walls. We'll see what the final product looks like, and how much it really mattered.

Oh yeah, you can tell that I had to take out all of the electrical work I had already hooked up, since I needed to use my roto zip to edge out the drywall.