Intarsia in the round is very simple . . . if you follow the *one* rule. The direction determines which yarn crosses over the top. That's pretty darned simple.
Heather Buist commented: "Hey thanks! I'd like to know how you have no loops in the back (at about 6:00)".
Here's the answer! There's a locking float method developed by Kyle Kunnecke and it's awesome!
https://www.youtube.com/watch?v=sCgzBT8qY4E