kato wrote:
Dura-Rock cement boards are up around tub/shower, joints were taped with
thinset. Now the tiling, and I'm asking opinions are the proper adhesive to
use for the tiles. The local Reno store suggests a Type 2 latex adhesive,
but I have some doubts about using it.


What doubts?

Just use standard thinset to set the tile on the backerboard. It does
not need to be modified.