What Ive found is that if you dont prep your beard well enough and just strop of leather, eventually my edges deteriorate, but if I prep well, then the leather works for sometime, but I noticed stropping on my CROX pasted webbing the edge stays perfect.
I love my SRD BRIDLE strop it's awesome, but the webbing really does an amazing job keeping my edges keen.
I do 25 on pasted webbing then 50 on leather before each shave, then 25 on leather when I put the blade away. This works for me and my heavy beard.
Cheers
David