I am currently a potion master alchamist on my shaman. Today I was making potions in preperatoin for the weekend and had alot of extra materials floating around and decided to make some
Fel Strength Elixirs to see if they would sell. For some reason I got a mastery proc off the Fel Strength Elixir even though it has elixir in the name. Am I missing something? Is this a bug? Is this a fluke and I should just disreguard this?
Screen shot of the elixirs producing more than the expected amount along with a similar shot showing my potion mastery procing about 5minutes earlier:

Sorry if this has been discussed before, but I did an intial search and could not find anything.