Just an update on my Low Viz backpack hinge, which broke during the first time I transformed it. I know others have had a similar problem (I just can't find the thread).
I just received my replacement parts from HLJ for my Low Viz backpack hinge via SAL. From the time I ordered until the time I received the parts only took about 2 weeks...not bad!
Anyway, I ordered replacement parts BP7 and BP8, and I received the entire backpack hinge assembly, including BP7, BP8, BP9, and BP10. Bonus!
The only tricky part about replacing the broken backpack hinge was prying BP11 from the backpack (so you can take apart the backpack). You need a very thin tool (I used a small Swiss Army knife), and be very careful.
The result after putting in the new parts: it's as good as new! IMHO, it's much better than attempting to glue it, and it only cost about $20 for the parts including shipping!