Hi all. I'm currently doing an ensuite refurb in my house. I have used hardiebackers and primed them ready for tiling, I have done a bit of tiling before but I'm a sparky by trade and I have a question with regard to adhesives for tiles of that size. Basically powdered or tubbed? Would you get away with tubbed for that size or not? BAL green star says 300 X 300 max but it just seems hardly much bigger to worry about. Maybe I'm wrong and should take heed of the manufacturers but what are your opinions? Cheers Liam.