totally agree with you there, only thing I can figure is that maybe it's my humidity. So far they are all very lively and one new picture coming up as soon as I get some more battery life on my phone.Woot! You have some good activity, that's awesome!!
...um, its worth reminding others, however, that 2 days early is like a human being born 24 days premature. Not necessarily a goal. The species takes, on average, 21 days. Just an average, its true, but there is a lot of development happening in that 21 days. So if it is crammed, instead, into 19 days...something different happened. Maybe they lost weight faster than typically, maybe the temperature was higher than ideal, but whatever the reason, it shouldn't be a goal.
FWIW, I always give my chicks a stress-aid vitamin/electrolyte supplement in the water for the first week. Its especially useful with early and late hatchers, but I figure they can all use a little boost.