S
Spare Tool
Thanks for the mention Andy, the prep i could handle but as I have no experience with thin tiles would bow out graciously on this one.@Andystiletiling is also in your area. Whoever ends up doing your tiling, please for your sake make sure he’s a tiler and you check him out, don’t let the builder do it. Too far for me unfortunately.
I would seriously think about contacting @impish (Mark at imperial tiling) as already mentioned. Knows his large format and is just in your area, you may have to wait a while for his expertise though..good luck with your project and for God's sake don't let your Builder near those tiles!!