I skipped the lasts half dozen posts as this has gotten a bit off the rails.
I just wanted to post my appreciation for Jim's efforts to make the video. I saw the $150 control boxes elsewhere and thought that there must be an easier (and less expensive) way to do it. A couple resistors, a diode, and some wire is all it took. Now, that's the reason I'm on this site.
More choices in solutions is a great thing. Future readers just need to decide their level of comfort and choose a solution that both their cajones and their wallets can handle.