Before you go buying a new shaft, talk to the store where you bought it. They (or the local Ping rep) may be willing to switch it out for you with another stock shaft. The hosel makes it easy enough. The blue TFC is a pretty light stiff and may well be a better fit. See if they'll refit you just for the shaft. I find the suggestion of playing the driver at 8 degrees kind of surprising.
3/4/15 at 8:50pm