Never tried a nylon strop, are they the stropping equivalent of nylon shave brushes, great performance but limited 'heritage'?
I keep coming back to my Kanayama cotton strop, luv it. Many put them in the washing machine to break in; I just worked it with my fingers...
I've looked at Kanayama from afar - it's not so much out of my price range (though it is at the moment), it's more out of my price range for a single purchase - though I did think of getting the Kanayama suede component.
Nylon... we have a complex relationship
I got my everyday strop (Parker Latino n Nylon) 'cos I'd used a bunch of nylon belt to experiment with 'hoodoo' hones and it's really really good for holding diamond compounds and CrOx etc, but as a second component it's, it's just OK. I'm going to replace the nylon component of the strop with duck cotton soon, and might add a bit of suede.
The leather just keeps getting better on a weekly basis - not a bad strop for 60 euros - though I had to dress the edges and condition / oil / 'burnish' the leather on the non-stroppeable areas to make it look handsome, and feel comfortable in the hand.