Question regarding duck eggs

[ChickFila]

Currently I am hatching Ancona and Silver Appleyard duck eggs.
I put them in my R-Com King Suro, set humidity to 55% and they are turned automatically.
I am a little worry because some sites said humidity should be around 85% during 25 days and increase humidity to 95% at lockdown.
I hatched goose eggs before and they hatched well on 55% humidity. Is it too low for duck eggs?
Second question, at lockdown, can I put eggs in egg carton like chicken eggs?
I always put chicken eggs in egg cartons and they hatched well and it is easy to clean, etc...
It is ok for duck eggs?
Thank you for any advice!
Oh, third question, should I mist duck eggs every day just like goose eggs?

 

[FoxhallFarm]

I have incubated duck eggs in with chicken eggs before when out of space and have achieved pretty reasonable results at around 60% humidity throughout, bearing in mind I live in rainy-ish Southern Ireland. I don't mist duck eggs and I can't answer about the eggs cartons as I never use them for any breed. I have however had problems before and have lost almost an entire clutch of call duck eggs due to loss of humidity when opening and closing the incubator to remove chicks during a staggered hatch. I now avoid this situation whenever possible. Best of luck for a good result.