I dirty flashed the 2/4/17 rom over the 1/24/17 and didn't experience any problems. Flashed openapps pico version along with, also flashed the root file from link on first page.
What a nice version of Android! Right off the bat, pulled up youtube and played some old psychedlic Jesus rock (Out of Darkness). *Great* volume levels. I actually had to slightly turn it down... now there's a "problem" it is nice to have.
Massive thanks to all involved, esp.
@thompatry.
ps: If you haven't, install thompatry's custom TWRP. One of the coolest things it does is to activate MTP (Media Transfer Protocol), which means you can hook up to your windows machine w/ TWRP running and access all your files on the tablet. Think about that... if somehow the Android install itself goes bad, you can go to recovery and retrieve all your files. VERY cool.