I use quilts made for the HH for my WBBB. They have the asymmetrical shapes that work well with the WB. In fact, I just received the Potomac KAQ by Arrowhead. This UQ is designed for the HH. It fits great. I added a couple of rings and mitten hooks with shock cord and grosgrain to both side of the UQ and WB so that it stays in place. I've found that without them the QU tends to slip to your right side and leave you cold on the left. It's an easy mod to make with just a needle and thread. My guess is that you would need to do something like this with any UQ because of how the WB is shaped.
Hope that helps.
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