I use wilflex stuff.
Buffalo is good, so is bright tiger, and poly formulation for the damn red ones.
I don't know about the auto, but with the manual I print em
basically the same as tees, but I actually hammer the first white ( base, whatever ).
You gotta hit it hard, and it works or it doesn't.
Every time I've tried the low pressure gig, lay it on top trip, it fails...10 years on.
( I've printed alot of fleece, and still don't like it )
Some fleece just sucks, no matter what. Fibres stickin up and shtuff.
Don't even think about printing normal white on most red though.
Run a couple unprinted through the dryer before deciding what method to use.
See how the fibres react to heat.
Say a prayer, and have some cold ones in the fridge for later.