Understood, thank you for clarifying that.
Do you limit the tension on the fish scale to your max working weight when hanging? For example, if you are working up to 10 pounds over the course of the hanging session, do you use 10 pounds of force on the fish scale when measuring post-BPFSL?
When I measure with the fishing scale I still have the vac chamber on my dick. I put the end of the fishing scale that would get held by a hand around the door handle. The end of the scale that the fish hangs on I hook on the vac chamber. Then I walk backwards until I reach the force I want on the scale and then I measure my BPFSL.