I use x perl unit frames and have targets of party and party pets up.

Then I use a 4 red 1 green Drake setup and lead with the green. I un bind my 2 key on the green Drake as you don't wanna spam that spel but you DO want to keep that buff up. Then I just spam my 1 2 and 3 keys for dps And dmg evasion. I use mY mouse to click whichever Drake needs healing and always keep a 3 stack of the life leech up on the boss. I haven't wiped once since switchin to this strat and I'd bet that u just need to get an addon to target the drakes better ie xperl or pit bull and you'll figure it out. Trying to do too much with macros when all you need is a better unit frame addon!