Stock offerings from companies Titleist, but shaft manufacturer for steel I like True Temper and for graphite I prefer Matrix Ozik

Honestly? When I go to a fitting, the one that the Titleist certified fitter finds that can give me the best results with my swing with their new products. Sometimes the shafts change each time I change clubs (i.e., 714 to 716, 910 to 915, 913 -816.) I let the professionals come up with the best shafts for the best results. Thanks Titleist for giving me the same options that the Pros have.

They are all very good. It depends on how you define best. A shaft is good if it works for you and a good fitter can help you make that determination.

DV

Is there a difference between s300 and c taper X 130 iron shafts?