I fitted a Super Star one at the same time as my SS narrow wide (didn't trust the hype), it came off on the 2nd day of the Alps as it caused more jams than without. Didn't drop a chain for the next 3 weeks out there (or since).
I wouldn't bother with one if I was you, just get your chain line and length correct and fit a clutch mech and N/W instead
Tom kp
