for what its worth my swing speed is 95mph with driver and i use a r7 425 10 deg with a regular v2 shaft and get about 230 to 250 mtrs carry with this set up so maybe you do need more loft and a regular shaft if you are around 95mph,i tried a stiff shaft but got the slice problem when i tried it and had to rip it to keep it from slicing thats why i went to regular so i could swing normally,my iron shafts are nippon ns pro stiff as recommended by the mizuno fitting device that attaches to a club for my kick point etc etc hope this helps ,i know we are all different ,it just looks like our swing speeds are similar