Climbing srt with the bdb all the time, my km3 max never seemed to get any wear at all. No break in, no fuzz, just hard and smooth. I've only had a half dozen or so decent size climbs on my scandere yet and also no significant wear. I have an order in for an hh2. Perhaps I can get a little break in by running a friction hitch for a few climbs. My reason for buying the hh2 is to use with captain hook, but maybe it can break in my ropes too.