Sadly, for the 5 years that I pioneered, I had the giant "sister" version of the bag.
People used to tease me and say, "I think that point was made in the 1982 WT.......Palm, you have that bound volume don't you?....."
I have shoulder problems to this day....My chiropractor asks me, "what happened to your rotator cuff????," and I say, "well, I used to carry around this HUGE bag........"