While I use and love several of the arms mentioned here, and several other vintage arms not mentioned, I think suggesting that they are 'no worse than today's great design' is not facing reality. There are some fantastic designs out there right now. I think the Triplanar is a beautiful design (not physically beautiful, but in craft-engineering accomplishment). I wouldn't mind a Talea either. That said, the sum total spent by Halcro on his three arms is, I expect, a fair bit less than one used Triplanar.
I, for one, have not completely moved over to the camp of MMs. I think lots of different carts get it right, not just MMs. But there are some nice old ones.
I, for one, have not completely moved over to the camp of MMs. I think lots of different carts get it right, not just MMs. But there are some nice old ones.