I've been using this for 3 weeks now, what I have is the HT, SR flex stock shaft. I have to agree, the feel and feedback is very good, somehow the weighting system used makes it extremely easy to square the club face and encourages a faster swing speed. Since the clubs are usga & r&a sle conforming, I thought that I would lose some distance since the 'trampoline' effect will be severely reduced, to my disbelief, I'm hitting it at the same distances that I reach when i was using my non-conforming driver, and much straighter too. I'll update you guys on my actual experiences with this driver. So far, sooooooo good!