Just thought I’d mention some pretty good customer service from Wolftooth.
After a few months with both the 10s and 11s tanpan, the 10s on my roadrat started having the similar problems to theonlywayisup- seemed like sometimes the cable would grip and turn the pulley and sometimes it wouldn’t, messing with the shifting. The 11s has been fine.
I got in touch with Lindarets (I’d forgotten the change of company) and Marc told me about the pulley update and put me in touch with Wolftooth. Brendan there pretty much asked for my address and said a replacement would be in the post. Maybe two weeks later and I’ve got replacement 10 and 11 speed pulley wheel, and a couple of the inline adapters.
I haven’t fitted them yet admittedly, but I just thought people would like to know that WT are standing behind their kit.