I save a copy of the SeeSat list every week and have some software that parses the objects that I am currently interested in. As of a couple of days ago the latest 41941 epoch was 20154, and I have the 21114 epoch TLE as well. So the 20114 epoch is the latest that TruSat has? I also copy the ISON orbits (and fortunately the historical ones are always available) and combine those with SeeSat.
I will start copying the TruSat list as well and see what objects are in what lists - Priorities and Debris and most of “More” are available. I assume that “Undisclosed” is the SeeSat list and TruSat doesn’t publish them as a matter of courtesy. I can combine the TruSat and SeeSat lists and keep the unique ones from each.
As you point out, Mike uses observations when it suits him. I made a number of mistakes, tried options that did not work right at first and Mike decided that my observations were all bad. Then as I figured out the various right decisions I had to pester him to get him to look at newer attempts - I finally figured it out. TruSat also ignores my observations so I stopped submitting them.