The Big Picture
I think the general idea for doing these runs int he first place has been to test the limits on how effeciently these limbus zones can be completed and gear farmed. As with so many things in FFXI, the number of drops per time spent ratio is kind of bad for Limbus. I've heard of many "Limbus Shells" that just have huge wait lists on certain pieces of gear that never seem to drop for them, or they simply just can't kill the bosses enough times to support such a large member base.
By severely cutting down on the number of players in total (such as we have done), or cutting down on the number of players per route (and splitting up doing multiple chips per run), the number of drops per time spent ratio can go up greatly. This is really the purpose of being able to low man anything in this game. The bragging factor is always there but when it comes down to it, less players to win means more drops per player. I really hope that others who read this can benefit from some of the ideas we've used to improve their own farming efficiency, and in the end, increase their drop totals as well.
FFXI Needs to Change the Mob TP System
The only other thing I can say about the way we did this is the TP system in this game is completely broken. These bosses were meant to be hard and they really are hard - if you melee them. The key to both boss fights was TP limitation using BLM, which has by far the highest damage to TP given ratio among endgame DD options. A simple change in Omega that gave it TP regen sent us into a total panic, showing just how big a difference mob TP gain is in just about every boss fight in FFXI endgame.
The vast majority of boss specials are based on TP. Other factors like Omega's sick counter rate just hurt melees even more. If you notice our times in the last 2 posts, the kill times were really not that much worse than your average 18 man group - the BLM DD strategy is just so effecient it barely requires any supoort. Couple this with the fact that BLM is on it's own one of the best support jobs in the game with cures and stun, and you really don't need much outside of some MP regen.