i would call them steel fowls, not necessarily steel game fowls
i'm estimating about 20%-30% would run or sulk... good cutters though... like many asil strains, or even american strains, it depends on what you get...
the infusion of american blood in recent years have improved both speed and gameness.
(ga cua = spurred fowls
ga don = naked/taped fowls
ga noi = pure of a high class, similar to the word asil, although many people use this term for ga don, as that was the only game in town up to 30 - 40 years ago, when people in VN started messing around with steel... probably brought on by american soldiers...
first it was the bantams that was used, not much gameness there... then they were crossed to ga don for more size and game, still not good enough... then they started looking a lot like sumatras but with many colors instead of black, so my guess is someones started crossing sumatras to ga don (except for the first pic posted by cnucum, the other 4 look like sumatra in my opinion)... now with american blood, some will have tails pointing up... there were also stories about general Cao Ky being gifted a good american rooster from someone in the PI, then one of his helpers stole the eggs and gave them to their relatives in Ben Tre, thus giving that province a leg up on everyone else on the breeding of ga cua. to this day, that province is still known for having the best ga cua... )