Just hitting irons on the GC2 Quad and looking at my launch angle, ball speed, height and decent angle numbers are with the 2 different shafted irons. It gives me a feeling of how hard it is and what a crap shoot it is to find the proper shaft to make ALL the numbers right.
The modus 3 105 stiff for me launches too high, spins a bit lower than it should but has a great angle of decent and the height is perfect. When I try to bring down the launch, spin goes up which is good but overall height and decent angle are bad.
The DG pro has issues too... it’s just gotta be mind boggling for a fitter these days with so many options and knowing about all these shafts.