Few things to take into consideration when you're doing using the shuffle.
- Check the price of your [Golden Lotus] and see if it's profitable to transmute your uncommon gems into rare versions. (Of course it's best to be a transmute master to get the procs)
- Check the price of your [Spirit Dust] and see if they are cheaper than 4 gold. The reason I say 4 gold is due to the fact that [Shadowfire Necklace] & [Ornate Band] both sell for just under 9g each. Keeping that in mind when you disenchant these 2 items you can get anywhere from 1-4 [Spirit Dust](Without Guild Perk). The majority of the time you will usually get 1-2 though. You will have to decide if it's worth gambling for 3-4 [Spirit Dust] each disenchant. (Example, you disenchant 3 rings and each give 1 [Spirit Dust], your AH has them for 2 gold each. So your 3 dust you got is only worth 6 gold. If you sold them to the vendor you would of got a guaranteed 26g 93s 46c. So you missed out on 20g 93s 46c in the end.)
- Check the price of your [Ethereal Shard] before upgrading from [Spirit Dust]->[Mysterious Essence]->[Ethereal Shard]. You might be better off buying them straight off the AH. Using addons like Enchanting Shuffler can help ease the math on yourself. Also, with 5.2 Crafted PvP Shuffle it might be cheaper to craft those to disenchant. When you do so, you will also get a chance at [Ethereal Shard] x2.