This is the BoS I remember using on OSI. Bags of sending used to use charges to send 1 item at a time (no containers allowed of course), instead of by weight. There are only a few lines of code to change to return a BoS to it's former glory, but why do that when you can just use this one?
I didn't write this, but it was in an old, old folder that I ran across. I don't know if anyone actually released a version like this anywhere.