The impression I have from the experiments of mparker762 is that the canvas or linen is sharpening to some extent while the leather is polishing. Try 50 or 60 on the canvas followed by another 50 on leather and try the arm hair again and see if there is any improvement. If not send the razor back to be honed again and don't strop before you shave when you get it back. That will help you know if the problem is technique or incorrect stropping. Just IMO.