Barudan or ZSK. Barudan is more affordable and has a bigger market presence and more techs. ZSK has more metal parts, a smaller sewing arm, and needle hole is closer to the edge so could be better for odd shaped items. Those are the only 2 I'd consider. Tajima is way over priced and just look how many used are on Digitsmith. Barudans don't last long. I've got a Barudan 6 head and had SWFs. Don't but SWF either.
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