As I said, skydomes are easily fixed. Just disable shadow cast/receive. See Picture 2. That's a modified Amamiya dome set at maximum visible size. No issue.
I don't know what Ram did on the AHM_Docks map, but he didn't disable shadows properly. See picture 1. That's the same map with the shadows disabled.
To disable shadows, select all meshes-->click attributes-->uncheck "Receive", set cast to 0.
Picture 3 is using my Town map, normal size. Notice how the shadows already took a small hit in quality compared to Picture 2. No issue though.
Picture 4 is using the same map, size x11. Issue present.
I already tried the shadow config by plasticmind, tmv. I didn't notice any changes in shadow quality, probably because the cyberbeing config is roughly equivalent in this department. At any rate, the issue was still present.