I actually use Mojo, AFO and 1 notch white filter.
If I buy a Schiit Jot, that should be “fuller” than Mojo, I will need to switch the filters to black each time I change from Mojo to Jot?
As for the Mojo, I don't have a clue man. I've only auditioned it a few times for a couple minutes but never with the AFO so someone else would have to answer that one for you. But?.....I own both the LYR2 and Jot (Project Ember V2 too) and they ALL sound great with AFO in my humble opinion. I'm literally listening on the LYR2 with AFO as I type rocking out and sounds great. There's so many opinions on what amp to use but I've settled on these 3 and couldn't be happier.
Actually they're both pretty similar with the Jot having a lot of punch, a tab bit brighter (but not bright per sey while staying smooth) while staying very controlled. The mids to my ears are silky smooth. It also gives you the opportunity to go balanced where the LYR2 is strictly SE. I continue to go with no tuning pads with the Jot as I do with the LYR2.
The LYR2 again is a hybrid and can be tweaked to your liking with tube choice. Couple that with the tuning pads, the small nuances that'll be available to you are basically endless. MY DAC is a Mimby and it's inherently a little warmer so it's kind of a balancing act with all these moving pieces. Amp/DAC/tuning pads/tubes (for L2) volume, preferred genre of music, health of ears, etc. I also should note I don't use any of the pads and if I do, it's only the black.
The LYR2, like the Jot has plenty of power, fast, has an punchy impactful low end where it's not muddy or bloated and dynamic in it's presentation. It has many of the same characteristics of the Jot. It does have a semi solid state presentation though. Again, paired with the correct tubes it does show enough disparity where I feel owning both gives me enough differences that I've taken the idea out of my head on selling either one of them, unless I upgrade to a Gumby and that "should" be my endgame.
If I truly had to make a choice, I'd keep the LYR2 because of the incredible amount of opportunities to roll tubes and tweak the sound to my liking.
The Ember is a different beast so that's for another conversation if it ever comes up.
I really like the AFO with my gear, but It doesn't seem that many head-fiers run with this combo.