For both of them I bought the tool set which makes the changing of straps very easy. Furthermore, a rubber diving strap with the buckle is included in the package.
Blancpain is having both Barennia leather straps and crock straps for FF. I have both and they are of very high quality. I would say that in case your AD is not performing like you expect, go to the nearest Blancpain Boutique. From there you will at least get really good service.
Best, Kari
I'll post during the weekend a couple of pictures at least of the leather bands. At the moment my SS is with black Barennia leather and the RG one is with light brown Barennia. Black croco will be asy to imagine when you will see these.
Best, Kari