I know there was a newer thread than this on the SRD modular strop, but I'm excited..
Mine came today with an extra leather pad that I ordered and the other usual stuff (SRD Lynn Abrams Modular Paddle, .5 Diamond Spray,
Hard Wool Felt Pads, Roughed Leather Pad). I love it because, I can now do everything with that set-up. I was already using a SRD paddle as my primary strop, but was using an old 2" linen side with CrOx as my step after the 12k Naniwa. Now I can just do rough leather, leather, diamond felt or CrOx felt with one tool...and it's too nice to all a tool. I did drill the handle so I can store it hanging, with a leather thong, and I retired my other paddle to my home office, where I can strop while thinking about email answers.
A great buy! Wish I had bought it first.