Replacement yokes
I've worn out my yoke as well. Late last year the mesh on the straps wore through where it sees the most contact when taking on and off.
It took a few phone calls, not just a repair ticket through their site or an email. They sent me not one but two replacement yokes, neither of which was the original color(black) but I like the two tone look. Easy to remove the old and replace with new, no need to send your bag in for repair. I also saved the old yoke in case it came in handy later for some project.
Currently the bag spends most of its time on a cart, these two new yokes should last a few years.