Breaking down Ecto, does kit matter?
Master’s is best for getting dusts with ectos. And so, yes the kit does effect the drop rate of dusts. You can try it out yourself.
I seem to recall someone here (Mystic?) doing some research after the change was made. It showed that kit quality DOES make a difference, and that BLSK’s give the best return (although not by much, compared to Master’s/Mystic SK’s). So yes, if you’re salvaging Ectos, use Master’s/Mystic SK’s.