It's oop so old guys can have an advantage with all their storms, talons, and mrvs. No really, the buzzz ruined crafts line up cause no discs sales can match- that's why every disc is a longer buzzz(tracker), a buzzz on steroids(stalker) or a more stable buzzz( nebula). At least it's better than calling every mold a roc.
Depends on plastic of course but my 166 opaque z I used for a straight to turnover. A maz weight will offer more stability I'd imagine. Haven't tried it lately but my 150 didn't do much for my old torque monkey form.
As far as I am concerned the Z-Storm is the best disc ever. I find it immensely controllable and incredibly straight. I have a standing offer of $25 for the 2003 DGLO tie-dyed Z-Storms, if anyone's got some. Email me: email@example.com.