It is not difficult to see if a tire/wheel is out of round. Due to how the Vision wheels are machined, very unlikely they would be out of round.
Jack up one wheel. Spin the tire. look at the tread as it spins. If it is out of round it should be pretty obvious. At one time you could have tires trued. Most likely at a big rig truck alignment shop.
Sometimes, you can identify the high spot on a tire, dismount the tire, rotate it and it would be just fine. They do not always seat on the bead correctly. Often you can look at the tire where it touches the rim, and see it is not equal all around the wheel.
I can say, from personal experience this past week. I have an in-cab controller for my shocks. They have a slow leak. I was on the highway and at 65 and up had a vibration, not major but obvious. I then noticed I had no air in my front shocks. While driving, I aired up the shocks and the vibration went away. My point is, could be your shocks are too weak.
As for tire vibration, I have been told by several tire balance shops, if the vibration is felt in the steering wheel the front tires or wheels are the problem. If the vibration is felt in the seat, then the rear tires and/or wheels are the problem. If vibration is in both, then front and rear tires and/or wheels have issues.
Wayne