A PGA Teaching Professional, with whom I am acquainted, has recently suggested that I might benefit from Shaft Pureing my AP3s and TS2. There appears to be two distinct schools of thought on this add-on. The first contends that, by performing this process, the efficiency of the shafts will increase, leading to modest distance increases and noticeably more narrower shot dispersion. The second position is that the result is not worth the time or extra cost and was an opinion shared by Titleist in a January 2013 posting. Almost six years on, I'm curious if Titleist's opinion has changed and, if it has changed, are the benefits realized by those with higher club head speeds (105mph) and not by those moving the club decidedly slower (88mph)? Thanks.