Okay, I made some adjustments with Rhoads, Tannehill, Phillippe, and Wiltse. I'm pretty happy with it currently. Thanks for all of the feedback.
For perspective, six years ago Jack Smalling sold his legendary collection of baseball autographs dating back to 1871 for $180,000 through Heritage. You can see that listing for over 13,000 different autographs here:
https://sports.ha.com/itm/baseball-c.../50002-50125.s
Heritage happened to include a link that listed every single one of the autographs here:
https://www.heritagestatic.com/c/d/c....825834710.pdf
If you match that list against the list of 391 players in the T206 set, you will see that Smalling only had 190 of those players, which is 200 shy of completion — not even halfway there!