If you go to the EAA website and look in the Mutimedia area, they showed how to take the grooves out of the Scotchbrite wheel, I can't remember what grade of sandpaper on a board and run it underneath it for a little bit.
 
I can show you how I fixed mine, Jeff. I ran into this same problem a few years ago. Here's what I came up with:

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Both tools were running, of course, unlike the static picture. Further discussion, along with before and after pics are in my weblog here:

Fixing a Scotchbrite Wheel
 
Basic gist of the EAA video

I went to Lowes and picked up a belt sander belt of the gnarliest grade of sandpaper they had. I dont remember the number. If you hold the belt against the wheel, all those grooves go away eventually. I needed a couple belts to get mine clean.
 
We put a video on youtube about how to do it. Look at the bottom of this page.

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Borrowing Bruce's photo here,

100_5285.jpg


I have to say I would not bother to smooth out the wheel at this stage of wear/grooving.

There is a lot of flat surface left to utilize, and to dress it at this stage is just a waste of usable, and expensive, product.

Like Stein would say, my $.02
 
Mike S said:
I have to say I would not bother to smooth out the wheel at this stage of wear/grooving.
Click to expand...

I agree. Mine's just about covered in grooves (5 or 6) and I'm starting to notice not having a good flat spot.

Those grooves do come in handy for edge finishing, though. One pass, instead of two.
 
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