Sorry, I can't help. I have an HQ Forte with Prostitcher and use Glide thread with Magna bobbins. I LOVE it.
TBH though when I first got it, I struggled. I attended their retreat in Salt Lake Utah on how to use the machine and I haven't had any problems since. Have you considered attending their retreat before you buy something else?
Adam Sew Fun has a youtube channel with lots of older free videos using an HQ Amara w/ Prostitcher.