I would take a 411G before a 431G. For some reason, both of the 431Gs I've had have been character building machines. Yes, I know the 431G is rarer and and an open arm
but both have needed to be timed, I had to file the hook straight on both, the throat plate pins needed to be replaced on both. The 411Gs have all been bulletproof. Rock solid machines.
That said, that lot could practically be mine! The first machine I replaced gears on was a 560 Diana, I've had 3 411Gs, 2 431Gs, a number of the plastics, sold a 328 that first Christmas I was fixing machines, 201-3, 99... lol! It's like a trip down memory lane
