Seriously if you are a tile guy and you haven’t tried these shim kits out from builtwithfoam.com Cabot Rowe. You really need to save yourself some aggravation and get some. My 2nd box so far and I’ve done at least 15-20 showers with the 1st 1. they sent me an extra upgraded gauge. I ordered late late on Friday was on my porch at 10am from Texas Today. Too sore to mud the walls yet still to dumb to switch systems completely. Getting closer every day. Great product get some! Buy 2. Do it. If ya don’t like it I’ll buy it from ya.