If it was me, which thankfully it's not, I would try for a very different time frame--either earlier or later. I think the coolest thing about the month collection is that it gives you a great idea of what was on sale in a given time period. So, either earlier or later would seem to make sense to me. For ideas, I'd go with December 1941 (first appearance of Archie), ?/1947 or whenever FC 178 (first Scrooge) came out, or for SA, maybe the month before Showcase 4 or FF 1 hit the stands. I'm sure there's lots of other interesting time frames one can think of.