In reading through the old threads, I have seen the subject of wheel wobble and being out of round show up time after time.
In the following link, Jeff covered the subject very well.
http://forum.tormek.com/index.php?topic=44.0
I did notice in later threads, that the twisting of the washer on the inside of the wheel by 1/4 of a turn, was stressed versus the use of the stone grader on the wheel. I did file the use of the grader in my memory. Seeing that my wheel is rusted on the axle shaft, that doesn't affect me now. :(
I think this should be information that new owners should be aware of because of the frequency of the question reoccurrence.
Never seen that 2004 Jeff post before...looks really useful. Ill try cleaning the hub of high spots as I've always noticed a bit of that side to side wobble myself. Knew it didn't affect performance though