Watching Bob was part of the reason this discussion started. I watched this same video and was wondering how I would implement what he was asking us to do.
Yes, I to use the stick with numbers, but as Maria Muldaur once said. "It ain't the meat, it's the motion."
That's just it. I don't think it is a figure of speech for a lot of people. Why else would so many people use such small increments when they reference the process?
Will definitely be picking up a proper laser measure. Why I can spend thousands of dollars on new components and balk at spending $50 to get accurate measurements, is one of life's little mysteries.
I actually have a couple of walnut slabs that would work for this, but I have resisted this method because once everything is dialled in, then you still need to remove the slab or butcher block, which might spoil all the previous effort.
"An 1/8 of an inch -- does that mean you have to keep your head in a vice?"
I wondered about this at first as well, but the reality is speaker placement tunes their placement within the listening space. Where your head is located is almost irrelevant.
To make things more frustrating with the Gaia's, I also have the carpet disks underneath them. Perhaps I just have to bite the bullet and put a slab of wood or granite under each speaker and trade convenience for aesthetics.