DRG/BLU is excellent for soloing. I can solo about 3k/hour as DRG/BLU, chaining EM and T mobs, usually getting chain 3 or 4. You don't get a ton of mp, but Sanction Refresh provides just enough mp regen that you almost never need to rest. Keeping Cocoon up all the time provides a big defense bonus, and the spells you use to trigger healing breath are only 5mp each. Other than that, you don't use the blu spells, the rest are there for stats only. Since DRG don't get alot of invites, I actually dinged both 73 and 74 in this manner.