i have a set of ping isi s and they have zz65 shafts in them the 5 iron has a cpm of 308. i was thinking of getting the rifle flighted shafts, my question is has anyone reshafted ther sticks with these and did they notice the long irons going higher and the short irons going lower like it says. also my pings are c9 kinda light what where your before and after swigweights with the rifle flighted i think they are about 15 grams heavier than the zz65. thanks