Revit :: How To Include Multiple Building Pads At Varying Levels And Sloped Pads

I am modifying topography to include multiple building pads at varying levels and also including sloped pads. I am having a non-consistent problem at the common boundary of some pads. A small sliver of topography sometimes 'sticks through' the common boundary. The height it sticks through seems arbitary, sometimes to the height of the original topography when cutting and sometimes much higher. I have used the copy/paste aligned commands to ensure the boundaries are exactly common but this does not work.

I have read that some users cut the topography globally and then build up the various levels and ramps using floors and the variable floor thickness command. This seems a bit cumbersome and I imagine would cause problems when cutting sections etc.