[slim]

what is the difference if a tool helps u calculate agression etc or whether it helps u hide tells/get tells? It is an advantage that helps someone win if they know how to use it. Just bc sunglasses don't "calculate" anything doesn't mean it can't give u an edge.

And I have definitely seen people write on a notepad during play at BM. I never looked at what they are writing so I can't be sure if they are making notes on opponents but if it were not allowed, I am sure the Floor person would ask to see what they were writing.