So what are they worth?
For something like this why not do it one step all with grout?I used PAM TITE Tile went on finished plywood. http://pamfast.com/index.php/news/unique_pamtite_hot_melt_adhesive_from_pam_fastening/
Grout was Trucolor French Grey.
I have taken to setting backsplashes with Pamtite so I can set and grout immediately.
Getting everything in place and keeping it there is a pain, even worse if you try to use a 1 step does it all (poorly) product.For something like this why not do it one step all with grout?
I did my backsplash with Permacolor and admix, the grab strength was incredible, no sag, but once you slap the tile on it wants to stay there and it's nearly impossible to "float" it around on the wall. But I gotta say it was hella fast.Getting everything in place and keeping it there is a pain, even worse if you try to use a 1 step does it all (poorly) product.