One way to make the top appear thicker is to put a thumbnail or waterfall edge on it. Thumbnail has a small step in the profile while the waterfall edge is smooth. It's not a roundover as the profile radius changes as it drops over towards vertical. Our kitchen countertops were done with a waterfall edge and the granite looks thicker than it really is. You can see the shapes with Google.
I've gone out to find myself. If I return before I get back, have me wait for me.
"Sawdust is Man Glitter"