Originally Posted by
Undefetter
He is referring to the fact that back when we DID have Fire Nova spreading Flame Shock, it caused extra Lava Surge procs. Which is certainly the case. With Warlords, Blizzard went around and changed it so that a lot of DoTs that procced effects only proc of the most recent effect. From my testing this is the case with Flame Shock now too, however many people are disagreeing with this, so I've removed it from the guide until I can properly prove either way.
You can't get exact DPS loss/increases into guides like this, because they require extra knowledge of the exact situation. To work out exactly how much difference there is, you need to know each persons exact stats, because they aren't flat % damage increases. It isn't "If you take Echo of the Elements you will do 11% more DPS than no talent" or something, because it is heavily dependant on how much Multistrike and Crit you have as to how much damage those extra Lava Bursts will do. If you have 0% Crit, Echo will give you much less benefit that if you have 100% Crit.
All that is really feasible is to say which ones will - relatively - give you the best increases in each situation. For exact numbers, you need to Sim it yourself for your own personal situation. The *exact* numbers included in the Warrior guide are incredibly misleading imo, because they are only valid if you are in that exact set of gear. It has the scaling factors for each stat listed, but that 2.01 Haste vs 1.52 Mastery is only the right numbers when you have that exact gear. If you roll a Warforged, Gemslotted Item from Highmaul, all those items will change significantly, but if people continue to follow them, they may end up not actually being properly efficient with their gear.