Thank you for the reply and tips for setting the USB. Light is showing on the left/inside.
The first time it got out of round was when it was under 2 hours of use. I've been sharpening hand plane blades, bench chisels and turning tools to include skews, gouges, and scrapers. Nothing too serious. If I had to remove a lot fo metal I ran it trough the slow speed grinder first and then touched it up on the T4. I could feel the high point in the wheel while applying pressure on the item being sharpened and see it as it made its rotation. Since then I have paid more attention to it after I trued it out. The wheel started to do it again, I could hear it and feel it while grinding. I do grade between the coarses and noticed that sometimes the wheel 'grabs' the stone grader, makes a rotation and grabs it again. I believe the spot(?) that is grabbing is a flat spot created either by the stone grader or a flaw in the stone as the metal trail in the stone after sharpening doesn't show any gaps or problems where the wheel isnt against the tool. That's another thread though. I don't think I was pressing too hard. Then just recently while doing a hand plane blade it started getting out of round again.
I think that play in the vertical position is what caused the slant in the wheel. My horizontal holes seem to be solid.