Reply to "Atlas track without sub roadbed"

For us old dudes, we still remember the old style phonograph players.  The way the sound was generated was a needle dragging on the groves in the record!  What has this to do with the topic at hand, well SCREWING down your track to a PLYWOOD table is making your PLYWOOD into a sound generator!  YOU WILL NOT LIKE IT!  I temporarily screw the tracks down while the GLUE is drying then I remove all of the screws.  I use either foam or cork or some sort of underlayment that is glued to the plywood.  I have even used that cheap crumbly foam stuff for under carpets! Once the layout is built the next biggest sound deadener is DRAPING or SKIRTING your benchwork.  This TRAPS the sound under the layout.  Have fun!   Russ