Best Grinding Spots for lvl 73-76?

[FoxyBrown]

Yes, these lvls are a grind. I'm currently at 74 and am wondering where the best spots to grind are.

I found that with a good party in TR i can gain about 8% per hour.

I haven't been in the abyss too much, because it seems like not enough mobs in lvl 70. Lvl 60 abyss I lag like crazy because of large numbers of mobs (though it is decent exp, as long as I have a tank and cleric to keep me alive). Lvl 80 abyss I haven't found a good duo/party yet, so I'm not sure.

I also am working on a BCT license, which oddly enough is giving decent exp, even in larger parties.

Where do/did you grind for lvls 73-76?