Staggered Hatch Questions

[atm21]

Currently I am incubating guinea eggs that are 28 days on May 30. I am using an older incubator that has 4 shelves in it the guinea eggs are at the bottom. Humidity about 50% right now. What does everyone think about adding chicken eggs in the last week? Is it possible or will increasing the humidity for the quinea eggs at the end ruin the chicken eggs viability. I am leaving for vacation near the end of June and wanted to be done incubating if possible so I would not have to when I got back bc of other stuff going on. Any suggestions or help would be appreciated.

 

[Pyxis]

Why don't you add the chicken eggs when the guineas are one week in? Then they will hatch at the same time and you won't have to deal with a staggered hatch