Prior to the start of this thread, Nancy and I had a 'TP' discussion.
We place ours on top of the stand next to the 'John'.
So no issues on direction of mounting/un-rolling, or friction/tearing math needed.
The current 'batch' is currently penetrable with little pressure and
So slick it's like useing a Rain-X treated rag!
The 'saveings' actually cost more since you use 3x more per 'deposit'.