are you able to give a good guess on what the Aurora MS will mold up like in Star/Sirius plastic? i know the Shark in Champ plastic was surprisingly overstable, and (at least in my experience) some discs are more stable in Star while others are not.
what would you guess the SMS will be like in terms of hi and low speed stabilities vs. the QMS?
I haven't compared them side by side, but the Sirius MS is a fairly straight disc. Low speed overstability is mild, probably between a +1 and +2. High speed stability is good. Into the wind hard throws will produce a slight turn, but not enough to rate it a -1. I would imagine the Q version will produce the same numbers.