Fair enough Sor. And I was thinking Mystcraft portals because you can make them any size, shape or orientation (vertical/horizontal). Especially with the maintain momentum option on the link modifier this allows for some pretty crafty traps.
Another possible use would be as a protective moat laid horizontally around important buildings in the overworld. Pursuing mobs would fall through and be teleported, say to a dungeon under your base, fall to their deaths and leave loot for you to collect (insert elaborate loot collection system with water flow and an obsidian pipe. All with no damage to your building. Coupled with a jet pack (or pro jumping skills) could make for a cool defensive base design. No idea what load on the server Myst portals have though.
Last edited by Hoathy; 7th January 2013 at 05:45 PM.