Dixie,
Yes I use Floriani thread, I LOVE it and have never had any issues with
it. Below is EVERYTHING that I do/use when stitching out ANY design
being polyester, rayon or metallic thread so far this is what I found is
working for me.
Machine speed: 350spm (slowest the machine has)
Needle: 90/14 TopStitch (or 90/14 large eye sharp)
Stabilizer that is right for the project I am working on
Thread net!!! (I found that this REALLY help control the thread during stitch outs)
I bought the Organ large eye sharp needles from ALLSTITCH.com great price
as you get 100 needles for less than $30 (plus shipping).
It took MANY trials and errors for me to find this combo that worked on
my machines.
Hope this helps.