Sorry for the delay in responding.... been so busy!
I've done a great deal of household and commercial electrical, though not up on the latest codes which are always being modified, and I so disagree with some of the notions in what is being done today. I was aware of the wire nuts regarding strand wire and the flexibility issue as well, although I wasn't really thinking about that in my application. I know that in commercial applications they use strand wire in conduit and so I suppose that I could use conduit as well, within the chases in my build. I really would like to use copper plumbing in my set up, and already was going to incorporate flex in certain areas for vibration / shifting, but really should use pex. I already have the tools for both. I just like the neatness of copper, but you can also buy straight lengths of pex as well.
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