Thanks for the input this is exactly what I am looking for. I have not had a real nice system in a few years. I have owned some really nice gear in the past, but do not know much about the newer tweeters. That is the reason I am looking for people who have heard these tweeters and others to voice their opinions. I have owned Focal in the past, but have not heard the TNK tweeters. I did have a pair of the TN51 quite a few years back. I have liked the cars I have listened to that had Dynaudio, but never owned them personally. I will look into these other options as well. Budget is somewhat of concern.
If you got the room, give these planars a try. They used to get a lot of love on here, for good reason. GREAT sounding tweeters, very smooth and not harsh at all. I've used a pair for 6 years now. Love 'em. And I've had MUCH more expensive tweeters, including several of the scans, but I always come back to the Neo3's.
The BG Neo3-PDR is a nice tweeter too, I had a non-PDR version at one time. I think the Scans are a little better, especially below 4Khz. But they are also twice as expensive. And as I said in a three way the tweeter is not as critical.