I ordered a load of Tri-Speed from an online golf ball place that I use regularly. They emailed back the next day to say that they're run out of the Tri-Speed however could supply the Q Star instead. I agreed and have been using them for the last couple of months.
Personally I have found it a decent ball. During the summer months it seemed good around the greens and I got decent flight off the tee. I will definitely continue to use it!
Srixon Europe The actual structure of the AD333 and the Q-STAR is very similar. The difference lies in the outer layer of the ball - the Q-STAR has a softer shell than the previous AD333. The New AD333 however now has SpinSkin which generates 20% more friction between ball and club. The Q-STAR still feels softer but does not feature the SpinSkin Technology