I haven't yet, but I have plans to. I actually have plans to do many of the witnesses but my plans have been paused for a few unrelated issues. That's why I came out with my list of "highly recommended" for now. I will definitely do that at some point soon though if the other project doesn't come together!

If you have any questions about any of them, just ask me and I will be happy to give you my rationale though... I do stand strongly behind each of them and for the most part it is because I have seen them support the community and try to build us up!