Great to hear it's working out for you Boyl. Not to try and derail from your experience, but is 2% more crit really THAT big of a deal? Honestly I'd imagine you'd really have a hard time even being able to feel the bonus from it. Also, if you had a 5th shaman the damage would probably be more synchronized anyways, not to mention the boomkin probably runs out of mana much sooner since he doesn't have a clearcasting like the shams do. Druids do bring some extra utility though, with buffs and brez. It sounds like a fun team nonetheless.