I like UNI Big Fly thread, but any 3/0 should work fine, and if you're really willing to splurge, the Kevlar/GSP threads are supposed to be the best for spinning hair, but I'm cheap and they're a little pricey for my blood...
So the 3/0 works for you guys? Whenever I use the UNI 3/0 thread it always ends up snapping. Buit if I use Danville 210 I never have that problem. Anyone else have that issue?
I also use Gudebrod GSP, which is no longer in production. Once you use that, everything else seems inferior. Since its basically a floss, you have to pull pretty hard to cut through the deer hair. You have to be more careful about applying force to the kevlar threads because they don't flatten out as much.