I would go for the 411G. For some reason, it seems like a nicer running machine. It's quieter (often the case with a open arm vs a standard bed), and seems to be smoother somehow, but I can't put my finger on why. If I had to choose to keep only one, it would be the 411G, in a second. Of course, I haven't a lot of use for open arms for the sewing I do, so that may have something to do with it too. Of course, it always depends on what pops up.
My pleasure! I'm always happy to enable... uh. I mean help.
BTW, here's the new toy I've been hinting about. The lady who I traded with did get my other 431G as parts of the trade:
http://www.quiltingboard.com/main-f1...ml#post6189510