OK, just straight up
copying the coordinate data from 4.19 seems to work (or, at least it boots and launches nickel fine; I can't tell if there's a difference or not, and I'm still not sure what that stuff does).
However, the libKoboTS.so mouse driver from the forma package (date 1/26/2019) doesn't work on my Glo HD; I had to
revert to the one that came in the KSM09+update001+nightmode version that was posted by CH23 (date 10/14/2014) before touch in KSM09 would work again. I don't have any other hardware to either test the other drivers, or if the 1/29/2019 version of the libKoboTS.so driver works on the same devices as the 10/14/2014 version (i.e. Mark 6 devices and older) outside of the Glo HD.
But the Feb 2019 version of vlasovsoft launcher has always worked for me, and it has the 1/29/2019 version of that driver, right? So I don't know what's going on, unless vlasovsoft launcher has never used the newer version of that driver and just uses whatever KSM booted with (i.e. the older one)?