I know that it is not recommended to do multiple hatchings in the same incubator due to loss of humidity when the first eggs hatch. However, I want to hatch guineas and chickens and was wondering if this will work... what if I set the guinea eggs one week before I set the chicken eggs? Then they should hatch the same time since guineas hatch in 28 days and chickens in 21. Will I still lose too much humidity when I place the chicken eggs in the bator? Thanks!