Q: What is the shuffle/How do you do the shuffle?
A: The shuffle is a process of taking ore (in Mists of Pandaria the ore of choice is Ghost Iron Ore), and prospecting it into gems. These gems are then either cut, or turned into jewellery. This jewellery is then in turned either sold straight on the Auction House, or disenchanted for enchanting materials, which are then turned into enchants or sold straight on the Auction House.
You can read What Exactly is the Shuffle
Q: Can you add smelting, Blacksmithing, Engineering, etc. to the shuffling spreadsheet?
A: The Golden Crusade Shuffler is only intended to help players maximize how much gold they get from doing the shuffle in WoW. This means features for other professions or items not currently in the spreadsheet will not be added if it is not part of the shuffle.
Q: What ore gives the best prospecting results?
A: In Mists of Pandaria your best bet would be Ghost Iron Ore, it is the cheapest, most readily available, and gives good yields for gems. See my prospecting rates page for a complete breakdown of what all ore prospects into.
Q: What’s the best way to make gold?
A: Unfortunately, there’s no magic solution to making gold, as with most aspects of life Your Mileage May Vary. However, the one solution most people go to to make gold consistently is the shuffle. You can read more in my post Is the Shuffle Profitable Yet in Mists of Pandaria for more information on the shuffle.