All great idea's.
I already differentiate some loads with colored tape, or label the mag with the load details.

The upper would probably never see anything except reloads, and once fired Rem nickel can be had for a good price, so that's what I would probably run in it.

You didn't use logic or reason to get into this opinion, I cannot use logic or reason to get you out of it.

You cannot over estimate the unimportance of nearly everything. John Maxwell