It seems to fly just fine. Not to high/low, not over spinning. Got to assume it's just ball speed.What do you notice outside distance (I assume that's why you don't like it from the tee). Ball flight different? I'm trying to nail down why there would be a difference - speed, spin, etc.
It's playable but doesn't have any of those wow drives like the zstar xv.
I do like it a bit better off irons. Which is why the diamond intrigues me. Maybe it splits those keeps more distance off the tee, little more spin feel with irons.