Nice post Dean.
You bring up some valid points.
I think I may strop in a similar way to you. I use a fairly short stroke with some play in the strop. The anchor hand never moves from my hip so it's not like a rubber band. The stroke is hard to explain but executed correctly the strop sort of wraps around the spine rather than the edge which trails on flat leather. I'm sure it can be done wrongly but so can everything, even stropping on a tight strop ...