GBB Epic reviews started off with a select group but reviews are expanding and are mostly positive.
I'll hold off judgement until demo days. I like Crossfields reviews but I'm not sure how much benefit there can be for sub-100 mph driver swings (mid to upper 90's).
Until then, I've got a GBB Fusion, TM m2 16 and my XR15 to toy around with. None of them were fitted so there is hope as I'm always looking for extra distance and forgiveness.
Many rounds under my belt with XR15. When well struck, XR15 is as long or longer than any driver I have played. XR15 replaced a g30. XR15 was forgiving enough and simply gave me more distance (but not g30 forgiving) over g30.
Fusion and m2 16 each have one round but both during fall/winter months so no results yet.