I presently play s300 shafts on my irons, I hit them fine but like all of us I am looking to see if there is something better. My brother plays flighted project x 5.5 and he states that they are more stable that the s300. Right now I am looking for up to date information. The internet has some comparisons that were done 4 years ago.
I would appreciate any comments, especially first hand info. Thanks.