Great thread! The one mistake I've seen is new couples who treat swinging like vanilla dating, and draw out some sort of courtship and hold the swap like a carrot on a stick. Saying you will & then you don't - essentially not really being ready. This is very similar to your point #4 - expecting to be "wooed"
I almost forgot to mention, drinking too much - not necessarily a newb thing, but when we were starting out we made this mistake - thinking, yeah lets get crazy
, but not factoring in things we wouldn't remember in the morning that could cause issues.