I have a double layered MDF table for the left wing of my Unisaw with a free used Hitachi 3.25 plunge $10 for plastic parts no problems with sag. I also have a Rockler top that I got for $20 with a free promo Hitachi 2.25 standard. I also have a 29" deep cast iron top with miter slot that will be a router table some day. Gee I like free routers.
"Forget the flat stuff slap something on the spinny thing and lets go, we're burning daylight" Bart Leetch
"If it ain't round you may be a knuckle dragger""Turners drag their nuckles too, they just do it at a higher RPM"Bart