Hi Britt, I am going to build a set of PTM irons to be left at my Florida residence.  I game PING G400 irons in VA, and love the Alta CB graphite shaft in soft regular flex.  What graphite iron shaft would you recommend for my PTMs that would have similar flex, weight, and feel?  The only spec I could find lists it at 66 grams with a high launch profile.  Maybe the UST Mamiya MP6 in A flex?  Thanks!