Has anyone played these shafts. I have the regular i70s in my miz MP 57 irons. The private reserve i70 has the same specs as the regular i70 (weight 74, torgue 3.3. I have played 3 rounds with the private reserves in a set of titleist cb irons. Still in the honeymoon period, but so far no difference is distance or feel, but very good dispersion.