"RoyJ" wrote in message
m...
I've had problems with various blades. Some run much truer than others.
I'm surprised the Norton is giving you problems. You might try remounting
the wheel, perhaps giving it a slight spin from where it is now.

When I'd change blades, I'd put the spacers and bolts on there, and with the
wheel loose, give it a spin to make sure it was centered on the spindle.
Then tighten it down. More than once over the years, I'd have it askew, and
if I had tightened it down, it would have spun askew.

Steve