This is nuts, but I've played round number 6 today with SWMBO's old driver. It's a PING 2015 Rhapsody with the UltraLight ladies flex shaft (40 grams............yes 40 grams!). It's about 44" stock with the stock ladies grip. I set it to the large "+" setting and I'm hitting very straight drives that are carrying to new spots on my home course, probably 10 to 15 yards farther. It's basically a G30 with a really light shaft........and Turbulators!