The UST Recoil graphite iron shafts really changed the performance of my older Mizuno JPX 850 irons. I had the older set of 850’s in storage, not using them anymore. I’m playing Mizuno 919 forged irons, great clubs. I installed the UST Recoil shafts in the 850’s just to try out and the 850’s are playing better than the forged 919 clubs! The Recoil shafts feel like they have more punch and distance with less effort.
Mated the Recoil 460 to the Dynacraft Prophet CB ironed (5 iron) and it PERFECTLY matches my name brand iron set. I matched the swing weight and the balance point and its performance is as good as the rest of the set.
I purchased the Recoil ESX 460 shaft for my Callaway Big Bertha hybrid. Just the right firmness and high ball flight I was looking for. Excellent service, received sooner than expected.