My feeling is the 3/8" will be sufficient Duane, if you use washers under the screw heads. Especially as the DW611 is a relatively light router. The plywood will be in compression between the washer and the router base, and it should be pretty strong that way. Presumably your recess underneath will be sized to snugly fit the router base, so the rest of the table will be the full 3/4".
The Muscle Chuck does look like a pretty great solution though, if they do one that will fit the DW611. It gives normal routers a couple of the things that make Tritons so good for an "austere" router table - easy above-the-table bit changing and ample plunge depth.
Last edited by AndyL; 12-22-2017 at 06:00 AM.