'Bout the same age I got a set of Blaze Orange Winchesters with Hollowfil 808. Sweat was immediate so don't stop walking until you're done for the day or you'd freeze.
I used to get "Volkswagen" and "Station Wagon" confused, as well as "Overalls" and "Underalls". The commercials for Underalls were on all the time and I'd get tongue-tied.
The +\- on a lot # of powder is IMO far less an issue than the variation in FF'd case capacity often seen in factory chambers. Factory chamber throat geometry is also IMO a bigger issue than is the +/- on a particular powder lot. Quickload and a double check over a good accurate chronograph...
Bolded in red is exceptionally valid, and deserves to be a part of the registration process. If the answer is yes, a more scrutinized approval process should be in place and membership approved only by 80% majority of the Founding Members.