Should I get more haste? (ele question) 523ilvl with links to epeen/armory

Hi - This is my toon :

http://us.battle.net/wow/en/characte...haman/advanced

This is my epeen report:
http://raidbots.com/epeenbot/us/illidan/imbashaman/

Im sitting at like 56/57 mastery and only 20% haste, should I try to reforge into haste a bit more?

If I knew my proper stat values I'd figure it out my self but I am a lost in simcraft.

Any help at all would be great.

Thanks