Graftech Lite would be the softest and the MPF Pro would be the stiffest, based on the profiles. M890 is right on the average of all the A flex irons shafts we have in our database. Hard to know if the ball flight will be the same when comparing a heavier weight steel product to a graphite product. The FST 115 and the M890 are both considered high trajectory producing shafts, so it’s reasonable to assume the ball flights would be similar, but you never know how differences in the weight and materials will effect your swing and the ball flight until you hit them. The MPF will definitely feel firmer and the Graftech should feel a little softer than the M890.