> @"The Boz.2038" said:
> How was this playtested? Was it, at all?
It looks as if it was devised for one particular path through the game, not the "play as you want" paths.
You can try a support ticket although someone reported (in the old forums IIRC) that one ANet support person wrote that even the staff was annoyed by the "logic" of it.
You can also try the Players helping players forum section in case someone found a way to adjust the mastery system to their gameplay.