Yeah, for me Vsido was just right - I had already reached kinda stable level with Xubuntu - and Vsido was mighty exciting, especially Openbox. I even Openboxed Xubuntu afterwards, and then dropped it from use (Xubuntu, I mean)... as Debian Sid tickled my fancy a lot more.
And if you so nicely ask of my opinion - then one general thing: I personally use Xfce nowadays only very infrequently. But remembering how good crutch it was for me when I wrestled with Openbox beginnings - I think you should keep it in your triple setup. Despite that you all here seem to be enamored to FB :) .
Now, current problem. Yes, I had Liquorix up to last ver., and also 10s and 9s still undeleted, I tried them - but 3.8.13 was the first to behave ok (with this a bit older Nvidia smxi put there).
It definitely is Xorg-upgrade+Nvidia thing.
And too bad that you got it so hard - compared to my puny Compton tricks.
Well, for compensation - I have had some two weeks now occasional freezes with Synaptic. Not that I use it for installing, but mostly for looking package-info. Means, no big harm done. Still, it makes me think of unkind things I would like to do to Synaptic.
Ups - I didn't plan to write a short story...