Sounds like we need a mascot of a screw grub wearing suspenders…
So in looking 29.5 should be home depot. @vicious1 can you add to this? Are the braces incorrect or correct??
check that conduit in multiple sides. see it if is oval or just a super random size. it should be 29.5 or 30 I have never seen anything in between unless it is just an oval and the other direction is smaller.
check that conduit in multiple sides. see it if is oval or just a super random size. it should be 29.5 or 30 I have never seen anything in between unless it is just an oval and the other direction is smaller.
So I checked it at multiple places at multiple angles. Here’s what I came up with:
29.89
29.7
29.64
29.5
29.9
29.8
29.6
29.9
That seems like a particularly bad piece of conduit. There is a zinc coating maybe that is just lumpy. I would hit it with some sandpaper on a flat backer board, or grab another stick of EMT.
Well bugger. I’ll try that then. 
That would definitely explain some things.
So I replaced the top and bottom rails, and it’s soooo much smoother now! Lowe’s also had a 29.5mm conduit (for the 1inch).
Now I need to figure out how to get everything leveled. It could be my spoiler board that’s screwed on I guess, but I’ll have to check the level on the new rails, the table and the spoiler board next.
Assuming one of those is NOT level, what should I do next?
The instructions have a pretty good z leveling section.
I’ll double check, thanks!