I have not bred yet, so take this with a grain of salt and hopefully some breeders can chime in. I've never heard you should open the incubator that often. I was under the impression, that you basically leave them be as much as possible. It seems like opening the bator that frequently might cause temperatures to fluctuate a good bit. I've read quite a few people who don't open the bator / tubs at all in the first 30 days. If you're set on this though, I would suggest having water bottles (filled) in your incubator to help maintain a steady temp / bring the temps back up quickly.

Also, you mention putting 2 holes on each end of the tub. Now, IMO that would vary highly depending on your locations normal humidity. I think a better approach may be to test run an egg box with humidity gage. Starting with no holes, and only adding 1 hole at a time until you reach you ideal 90-95%. You would be surprised how much humidity escapes with zero holes when you're not using press and seal on the tub in addition to the lid.

One last thing, after the babies are out they should be on a wet paper towel substrate until after their first shed. Then is the time most separate them and feed their first meals.

It's very well written, and I commend you on your research and thoroughness! I'm sure you are well aware, but just in case, I'm going to do the mom thing and remind you: before you start pairing, make sure you have adequate accommodations for the babies.

Good luck! It looks like you have a great start