The tower on my painted lady will be coral 3/8" glass tile. It's very tiny stuff and I didn't think I could get in on straight by hand. I thought the grid system I ordered would tell me how to use it...wrong! I get that it's plastic so weldbond wont stick to it BUT i'm using thinset on the advise of two mosaic experts I know. :) My first instinct with the grid was to lay out strips (since I want to stagger the tile lines like a brick pattern) and stick that plastic sheet stuff (the kind you use for indirect mosaic stepping stones) on them to pick them up and attach them to the thin set then pull sticky sheet off next day. But what about buttering each tile (which I have been doing all along). Is that even necessary? Do I need to do something with mosaic mesh in this process? I couldn't find any instructions on line so if you all could direct me to something I could read that would be great too! Tell me quick before I do something stupid here..lol.