I would want at least an 1/8 inch to give some room for surfacing
     > and resurfacing in the future and to give a more rigid plate to deal
     > with warpage.
     >   It may be more cost effective to buy a thicker piece they have in
     > stock and CNC mill it out and if the surface is to soft hard chrome
     > or cermachrome plate it.
     >
     >   Ken

Ken, I understand the desire for a thicker steel plate to allow a
"fudge factor" when machining. But the chrome plating mystifies
me. Why not nitride the surface as is done on the standard Mazda
plates? This is a simple reliable treatment, that is a molecular level
physical change and doesn't flake off like most chrome treatments can.
Bill Jepson

 
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