No "account" is requiring 16 oz cans.
Thanks, falls. H4U must have Wittern change the machine for the manual you linked to so it can hold the 16 oz cans. Having the 16-oz Monster and Rockstar drinks is helpful for some locations. And, yes, we'll probably end up getting a couple of 16-to-12 oz can converters for machines that don't want energy drinks. I guess I should have clarified my question - If anyone else out there has machines with a section for 16-oz-cans-only, are there any certain beverages you've found that fit there fine (e.g., some are a little over or under 16 oz) and sell well?