Thanks for your interest! As you can imagine, my travel was significantly reduced due to COVID-19, and sadly, the bag in question was stolen. I was, though, able to make a small modification to that bag that essentially riveted an extra nylon strap to the back of a bag, and did use it successfully as I had intended for a while.

I am coincidentally on a business trip as I write, and will likely give this more thought soon. I'll post if I have anything valuable to share.