All panels mentioned are the Tabco's I spoke of, like I said, that's all there is available regardless of where you buy them.
Interesting, but this could just be the new run vs. the old run (my hunch). On the old run (which I had/have), the marker holes were both horrible and incorrectly located. I had to partially close each one to get the location correct and the hole properly oriented. So since I have not seen the newest pieces for myself, I cannot say for sure but am relatively confident that there is only one set if dies out there being used to make these panels, regardless of what the company doing the manufacturing is calling itself these days.Classic 2 Current has told me they produce the ones I mentioned and are not Tabco's. Tabco's also have the sidemarker hole and the Classic 2 Current units do not have the hole.