Approximately how much impact does a counterbalanced shaft have on driver swingweight, assuming “standard” length, and no change of headweight or grip?  Are we talking 2-3 SW lighter?  More?  Less?  I am contemplating KE4 TC build with Project X RDX Blue 60 6.0 shaft.  According to Golfworks “standard” tables, that would be made to 45.5″…approximately what would the swingweight be with standard 8 gram sole weight and 50 gram grip at this length?

Thanks in advance…