I am trying to take two drone surface designs and do a surface to surface takeoff from the original to completed. However, the two different drone surfaces have come back with two completely different elevations. It appears one end (west end) is close but begins to trail further apart towards the other (east end). Because the difference between doesn't stay consistence, I can't do a simple elevation change on one or the other of the surfaces. I also don't have a known elevation height due to design changes, thus the need for a takeoff.
Is there a way to eliminate the trailing difference between the surfaces or some other process to get the two surfaces to match where they should to get a usable takeoff?
Thanks in advance,