Yeah, I've been going back and forth with that. I've tried it all connected but I just get too much distortion since the angles are inconsistent. The unwrapped polys I can make work at this point, but yeah, I totally get what you're saying. And yeah, it's basically a half-sphere, it's the base of the map.
Exactly what @DarthParametric said. I ended up splitting this model a lot more than I had intended, but I think things will be much easier for in the long run, also considering I'd be making 5 different models.