I've read that tides deform the Earth's crust by about 40cm. When I try to visualize the tidal bulge approaching me and then receding away from me, it seems like the local surface under my feet would tilt slightly one way as the bulge approaches, then level out, and then tilt slightly the other way as the bulge recedes. Similar to a surfboard as a wave passes underneath it. Is this picture correct? If "yes" does anybody have a rough figure for the maximum tilt one would "experience" on Earth due to this? Arc-seconds? Micro arc-seconds?