So, full disclosure, I'm all aboard the Sub 70 train. I'm playing their hybrids, irons, and wedges and love them!
My only issue is the build quality. So far, I've had to tear everything apart and redo them. Simple stuff like loose ferrules or misaligned grips/shafts... I've had a few strange swing weights too. I wish they'd follow New Level and offer heads only as an option.