I have a 3, 5 wood, and 4 Hyb with the Kuro Kage 2G R flex shafts. I just bought a used Callaway Mavrik Max driver with a UST Mamiya Helium Black 4 A flex shaft. If you have the UST Mamiya Helium Black 4 in your data base, hows it match to the Kura Kage 2G?
The Kura Kage 2nd GEN 50 R flex is firmer, as you would expect since we are comparing an R flex to the A flex of the Helium. We do have the Helium 40 A flex in the data base and it is a true A flex, higher trajectory shaft where the Kuro Kage 50 R flex is a true R flex and is considered a mid trajectory shaft. Interestingly, the Helium 40 A flex is actually 56.5 grams and the Kuro Kage 2nd GEN 50 R flex is 56 grams. So basically the same weight. Not sure why UST calls it a 40.
Britt Lindsey