In wont over flare like the Sync, Zero Gravity "should" be more useful for higher rpm players. The Sync left a sour taste in my mouth, so ill pass on the zero gravity. The Marvel S is a better high volume ball for me.
While the IQTF looks great, ill wait on that also. I can't justify having 3 low diff balls, while the IQ balls have been great balls for me, the Hyroad and Lights Out are better for me on the hybrid front.
Storm literally has too many good balls.