I have not DLed your map yet, but I would be impressed if you could manage to simulate a sphere with only 7 warp zones! A descent sphere for that sort of thing would probably have 20 sides, to make it apear somewhat round. This shape is a 20 sided icosahedron, and is made of 20 equalateral triangles. It would need LOTS of WZs to make it work, and the angles would be EXTREMELY difficult to calculate. Can you find half of the measure of one of the exterior reflex angles on a regular convex 20-sided icosahedron? If so, tell me! I've been working on that for months!
The ones that are messed up are probably because of sheets facing the wrong way, different sized ZPs, or poorly calculated angles. When I have some more time, I'll DL the map and have a look. Good luck, in the mean time.