I've never weighed either. I marked air cells, but never used them to gauge humidity. I always followed the formula: 30% for 18 days, then 65%. Barnyard chicks always popped, but the sussex were always malpo or DIS. wish I could hatch them again to see what the problem actually was. Probably low humidity, because the egg shells always seemed a bit porous/thin. I always had a few stinkers.
Anyway, with the honas I wanted to be a little more scientific. Not a big deal. I think the AC look pretty good despite weight loss.
Another thing I will say AGAIN!!
THE CANDLE DAYS 7 14 18 ARE NOT SET IN STONE!!!
Candle 3 eggs every other day or so AFTER day 10 and follow the air cells a bit CLOSER visually!! You will find you have more time to catch issues and adjust humidity!!