Just ordered a wester bros blade from eBay and have been researching anything and everything about straight razor shaving. Everything I've read so far says to strop first using the linen/canvas part of the strop and then go to the leather part. My question is do all strops come standard with a leather side and a linen/canvas side? Or are the two materials to different pieces? If this is the case will I need to order both a leather strop and a linen/canvas strop? Thanks your time.