English,
An interesting point is strop length. I have made long ones and short ones and have settled on a 17" to 18" usable stropping surface in a 24" to 29" length as working well for most. I find an overly long strop seems to have more side to side swing in use and I feel as if I have less control. Too short and I feel my stroke is hindered a bit at each end.

As a comparison I am 6' 6" tall with long arms (36" sleeve on a dress shirt) and the 17-18" length feels about right to me.

Tony