I ordered an R-Com 20 Pro and I'm supposed to get it this week. Does anyone have this model of incubator? I'm thinking it may be possible to add a second level of eggs to this incubator, I imagine that it's OK if the eggs touch? I'm thinking you may be able to add at least one, maybe two extra levels and as the bottom level rolls the top will roll as well, so in essence perhaps this can hold 40 or 60 eggs total? Has anyone tried this? I also noticed on the YouTube video that you have to fill the humidity reservoir every few days. To me it seems possible to place an inverted coke bottle (glass) in the fill hole so it will get through a whole incubation cycle without having to mess with filling the reservoir? Any other mods you have done to this incubator would be helpful!