Right again. I wrap the sandpapers around metal tubing, wooden dowels and worn out chainsaw files.
The off side of the bevel needs 2 or 3 passes just to knock down any wire edge if you get one.
I use the 1,500 grit paper 2-3 times and say: "That has to be good enough." It usually is.
John: You should not need to flex your wrists at all = you are the jig, you must move just from your knees.
The Stubai carver's adze is a 7/75 blade (#7 sweep, 75mm/3" wide.)
A tennis ball is exactly the right size as a mandrel.
The papers get wrinkled, I wish I cared but I don't
The black felt marker shows me where I've worked.