B
Blunt Tool
That’s the thing tho, you need to change your methods to suit today’s materials and tile size. A levelling system will hold the high middle point of a banana tile down till adhesive goes off, back buttering tiles is the norm now aswell as single direction floor serration. Just think shouldn’t advise not using them if you have no proper experience with them.I just think the old methods are best, that's all. I still trust a spirit level bubble over a laser. I would back fill a banana tile before laying also.