If this works well it sounds a lot easier than
> cutting channels or pressing mats. However, it could be awhile
> since I'm still collecting materials and haven't started grinding
yet.
>
> Clear skies,
>
> Rob O'Toole
>
>
IMHO I'd use a combination, facets and scratches, as having a solid
lap surface, even with lots of scratches, may be both hard
to press out, and hard to push....but that's just an opinion,
NOT a fact...
Bill Marriott btk@ix.netcom.com