Hi,
I have about 14-15 Muscovy eggs in my King Suro incubator. 
Here are my Muscovy set in the background,
Humidity set at around 68-70, and temp at 99.5. 
https://www.backyardchickens.com/forum/uploads/50183_photo4.jpg
https://www.backyardchickens.com/forum/uploads/50183_photo3.jpg
Well since I'm at it...today at May 4, I set 11 Khaki Campbell, I over stuffed the King Suro with 3 more eggs, 1 dropped, that's why I got 11 in there only.  Here they are, all over stuffed in there...
https://www.backyardchickens.com/forum/uploads/50183_photok.jpg
Well, I heard incubating Muscovy duck eggs in a incubator was one of the hardest to hatch, didn't find out about that till after I got these eggs...So lets see how the King Suro Does? 
Heard I need humidity at 55 for duck eggs...I can't really turn it down since I have my Muscovy in there, sooooo for now 65 Humidity will have to do...
Well I did searching and researching around, and no one has done this that I can see, so heck, I thought I might just go for it. 
I have fertile Coturnix quail birds laying now..I thought I would time it all so I would throw some of that in too. 
Lets see what happens..... :