For my swing, I went through this issue once before.
I had demoed some jpx forged irons that came with 5.5s.
I really liked them but felt they were a touch soft.
so stupid me went ahead and ordered a different flex.
the 6.0s are 5G heavier so the feel changes significantly from 5.5 to 6.0.
the 6.0s are very lively still, but a definite change in overall feel on the downswing.
