Feikert woodpecker vs Blackbird

I'm thinking of getting one of these tables with a Kuzma 4pt arm and Hana Umami red cart.  Is there better sound quality with the Blackbird or is it just that you can run a second arm.  I don't think I want to deal with 2 arms but if the sound quality is much better I might just go for the Blackbird even if just using one arm.  Not a lot of info out there and this is probably a long shot but if anyone knows how these 2 tables compare I'd appreciate some info.