Well I bought the new VS proto "by you" shaft and put it in my 983k head and wow...I have never seen ball speed like this before!! The stock speeder shaft seems dead compared to how the this shaft is working...well worth the 270 from golfsmith, and I had it pured too.
Has anyone else tried this thing out? Mine is the 60-S and took a little getting use to the lighter shaft but it is awsome!
Steve