Do you still have that Fluke App Note? If you could take a pic of it and post it, that would be great. I'd like to see it.
[On edit] Fluke has a bunch of those application notes on their website, but I couldn't find that specific one.
Here is one on using a digital multimeter for DC voltage that may cover what you're saying about capturing the highest or lowest voltage. I think you could get the same results measuring voltage as amperage.
