I have a new 8 piece set of miyazaki jinsoku graphite stiff 4 iron shafts, they are all 39″. If I was to install them in a set of STi’s 5-SW and tip trip at 1/2″ intervals (I would not trim the the 5 iron shaft & PW/GW would be the same, SW a 1/4″) would they play close to a regular (butt flex)?