yes the fuse needs to be level around the hatch area and then check wings and other mentioned areas most plans have a basic starting point of 0 on wings, stabs and motor

caps and ultimates are not the same 0 as above on some surfaces.

so take bricks or thing under the fuse to make it level in the hatch area if helps if the canopy is removeable that is how u will get the basic point to use as a reference