you could probably use that new double sided adhesive strip to secure the tiles to the wall.

Here is a link to the Susan Jablon insructions for installing mosaic tile.

Here is a link that might be useful: susan jablon

I'm using a round MOP in my shower. My tile guy is going to build it out with another layer of thin backer board so it matches the porcelain elsewhere. I think then, he plans to use white thinset, keeping it out of the grout spaces (very thin application). Then, will grout appropriately.

I'm not putting it behind a sink, but if you are doing that, then you probably don't need to use the backer.

Have you seen this thread in Kitchens?

Thanks for the info.

Saw that thread, oddly lacking in answers to the questions in it. Though it does seem a thin layer with clean up as you go is the trick. I just want to be able to pass along any tips to my GC, not sure if he's used such thin tiles and at that price I only want to buy those tiles once!

3/16 v-notch trowel, or even 1/8" square notch to put the tiles up. That should pretty much keep the thinset out of the joints.

Thanks, Bill! Sounds easy enough. I'm hoping he's happy I picked mounted tiles vs individual subways, not silently cursing the thin tiles :-)