Re: Fleece sewers...question.
Fleece is a PITB to sew with. :/ You have to constantly clean your machine & make sure its oiled & the tension is correct.
I couldn't ever get a LOT of sewing of fleece done on my "old" sewing machine...now I use a newer machine with automatic tension adjustment and I do okay....but it takes a little time to get the hang of it.
You're doing everything right!