Happy New Year TT nation. I got a bonus Christmas gift this year when my son "discarded" a new HZRDUS RDX shaft in favor of his old one, which he put in his new TSi-3 head. He tried a bunch of shafts when fitted and his numbers were best with the shaft he's been using all along,so I got an unexpected "gift".

My question to those who have played this shaft, and anyone else who may want to chime in; the HZRDUS shaft is 6.0 stiff, 62 grams torque is 4.1 or so. I'm coming out of an old Project-X 7C3; 73 grams,6.0 stiff with a torque of 3.6.

Can anyone tell me the difference in performance in these shafts? As a side note, my old driver head is a 910-D3 9.5. The "newer" head is a 913-D3 9.5.

Thanks