"Chris Friesen" wrote in message
...

The main problem with that is that the butcher-block top will expand and
contract with humidity changes, while the plywood will not. As long as
you plan for this, you shouldn't have any problems.

Chris

That occured to me but I'm not sure how to address that. If the idea is to
in effect make the top thicker and tougher to support vises without danger
of cracking, what would be the best way to go about that provided I want to
stay with the butcher-block top?