I tried to box the game with 5, in the OBT. The Follow command easily breaks when performing actions and their is no easy way to refollow in individual toons quickly enough. I have also attempted to 2 box manually which sort of works out, but still a pain. I currently use 5 machines so the launching of multi clients isnt really an issue anymore, which i also believe was fixed in the dev version of ISboxer.

As for healing i have a Mystic and Priest at 32 right now for Launch/Early Start. Your AoE healing abilities are not entirely just aoe around the caster. Sometimes their 10 Yards in front then a 5 yard wide aoe circle will be put there. Sometimes it 10 yard AoE from the center of your toon ie: Circle of Healing and your AoE cleanse. Your primary heal is Targeted/Multi-targeted ability. You also get a high powered high cost Heal that drops a Aoe Ring in front of your toon that 10 yards, and only hits 5 targets within that circle, not incluing the caster.

If there was a way to figure out officially how to box successfully. This game gives major xp boost to grouping not to mention group gathering nodes, which means farming mats will be a good source of income.

There was someone on the isboxer forums that said he was successfully boxing with 5, but i havent heard from him on what he was doing or how he was doing it. He stated per his post that he was able to box and do the first dungeon. I personally had major major issues with targeting and following multiboxing.

At this point i am for sure will probably be pocket healer (Mystics buffs benefit melee more-so then the Priests)boxing with a priest as he heals better with my main being a Lancer as their is a huge huge shortage of tanks in the 2 servers i played on during OBT. Their were damn near 10 to 12 groups LF tanks to do SM (second Dungeon)