So the group I run with is onto heroic progression. I've been quite lucky with drops and have 4 set pieces, no shoulders. I have some heroic shoulders so that's a no brainer but now I have heroic gloves and a helm and am wondering when it would be a good idea to drop down to 2pc, if ever.
The 2 heroic pieces I've got so far are
http://www.wowhead.com/item=104466
and
http://www.wowhead.com/item=104424/hood-of-swirling-senses#.
My armory for any other tips,
http://us.battle.net/wow/en/character/burning-legion/Asheodor/advanced
Thanks for the help.