Can someone please tell me which machines have an appx. 9" throat? I want to upgrade my machine on my quilt frame - I have a Singer 401 (aka the Tank) that just doesn't do well - the tension is out of whack and I'm tired of ignoring it, perhaps time to rehome it, haven't decided. My main machine isn't a really high level - a $300 Joann's special, and it does well on the FMQ on the frame, but is a pain to transfer back and forth. So I would like a dedicated machine with a decent throat for the frame, then perhaps I'd actually use the frame - haven't used it in over a year!!!