I'm putting in a pool and wanted to use small 1" glass tiles along the waterline. The 2 pool builders I've talked to said its not a good idea because they will pop off where they have to mud up from the pool shell to the coping (using travertine) Does anyone have any suggestions on how to accomplish this, or should I give up and go with the traditional 6" ones. Also what is usually done on the edge of the steps? One guy was talking about using a curved tile piece along the edge of the step??? What are other options there? Thanks so much (this is my first pool, live in FL, pool size 16x36 rectangle with an infinity edge)