Have you tried putting a straight edge accords the two bottom edge supoirt points and compare this to the tripod mounting point? All three points might end up being plumb to each other, which will give you a good thee point support in a large tripod plate. Also, how does the camera fit in a cage, any miss alignment issues there.
Just looking at the one corner in thenposted photos, it appears the camera body drops away, but the base appears straight. The curve of the case may be giving the illusion that it is higher than it really is
Cheers