I will share what I did. When I first got into SR shaving I bought a low end leather strop from SRD called the natural. Later when I felt I was ready for a good strop I bought a Tony Miller and converted the natural to a cro ox paste strop. I never felt like the blade gained anything from it. When I would get a blade that needed a little extra I would try the pasted leather and nothing. Recently I purchased two of the hard pressed wool strops from SRD. I sprayed one with diamond and pasted the other with the green cro ox crayon. Now I am pushing my blades over the top to a best ever performance by stropping 10 times on the crayon pasted wool.Just an incredible difference.
I purchased a few NOS razors. Filly 8/8 Doble Temple, Revisor 8/8 & 15/16 all three of which were not shave ready IMO. I had trouble dialing them in and in all three cases after going back to the stones three times I finished with the cro ox on wool and they all ended up with a wonderful sharp and smooth edge