Notchy feathering shaft on new Dfc head upgrade...: https://youtu.be/hML6rcORWeo
mart, was was the trick with the Devo 10?
I had a real issue with notchiness when I replaced the head on my 450 Pro V2. It turnes out that Align changed the feathering shaft and bearing set up when they came out with the 450L. The thrust bearings go in the blade holder before the roller bearing now. I had to upgrade the feathering shaft and thrust bearings. After that, the notchiness went away. Don't know if this has anything to do with your issue or not. Just thought I'd mention it.
itried strappin to my head with an elastic band tony, but I coundnt see past the fone lol, anyway this is my trex sport v2 dfc upgraded with msh brain...will show you my black angel later ...hopefully....Oh, I want video of that too hahahaha