Titleist do not pure their clubs as they do not believe in the process. Some shaft manufacturers may mark their shafts for alignment so they may pay attention to that, but otherwise they don't believe puring is necessary.

Puring is not as big of a deal as it once was these days given how technology has advanced and manufacturing tolerances have increased.

I’ve played pured clubs before and I like them.

Since going to Titleist full time in 2018, I have not had a single pured club in the bag.

The QC shafts go through at Titleist is pretty intense. Every shaft is tested and if one is wrong in the batch, the whole batch goes back.

So while you’re not getting pured clubs you’re getting clubs that meet very tight and strict standards Titleist has. Can’t really say that about other OEMs.

As other business practices offer extended warranties, the primary benefit of purring is the markup for the club maker. Quality control with newer shafts is constantly improving. I won't say there is no benefit, but nothing that will change my score from hole to hole.

Shaft puring is overrated today. It was necessarily 20 years ago when graphite shafts were not as consistent and the quality controls that others have mentioned did not exist. Plus, I remember the process of puring, also referred to as spine alignment, differed from one fitter to another. Graphite shafts have improved significantly over the last 15 years. So, IMHO, do not waste your money.

Being ignorant to the term puring, I went to the internet and found this article. Thought others who might not be familiar might be interested in this comment.

Shaft Puring - is a process of removing impurities from the shaft of a golf club using various means such as water, steam or solvents. It’s important to use the right purging method and equipment for the job since improper purging can damage the shaft and cause inaccuracy on your shots.

There are several types of shaft cleaning solutions available on the market, so be sure to choose one that best suits your needs. Be patient while purging your golf club; it may take some time but it will result in better performance down the road. Always wear gloves and eye protection when performing this task, just in case any chemicals get into your eyes or skin.

Is it worth it to get shafts PUREd? There is a lot of debate over whether or not it’s worth getting shafts PUREd. On one hand, you may be able to save yourself some money in the long run by having your shafts replaced before they wear out completely. However, on the other hand, there are many people who say that it’s not necessary to have them purified and that you can still enjoy great performance with properly maintained shafts.

Which opinion do you believe? There is no clear advantage to getting shafts PUREd, as the results are largely dependent on the club’s loft and swing weight. However, if you’re looking for an economical way to improve your golf game without making too many big changes, shaft PUREing may be a good option for you. Shafts Pureed simply means that they have been heated until the metal liquefies and is then poured into molds to create new clubs. This process can significantly increase distance and accuracy by reshaping the golfer’s clubhead shape.

The results of Chuck’s internet search do not describe the process that I remember being used 20+ years ago to determine where the spine in a Graphite shaft was and then install it appropriately in the hosel. My recollection was that spine alignment and shaft pureing were synonymous....or pretty close based on the company or individual who was offering the service. With today’s adjustable hosels and subsequent changing of the shaft’s orientation in some instances, this process seems to have lost its perceived value.
OR, I might be totally off base and confused !

Chuck's description is not what this is shaft puring is about- his description may an internal shaft cleaning process that I have no knowledging of- the shaft puring under discussion is alignment of the shaft such that it performs best. Tom P mentions the change in shaft alignment with the Adjustable hosels on many (majority?) clubs (not irons) so if there is a benefit a change in alignment would negate the benefit assuming it was aligned for best performance to begin with. I have a driver that maintains its shaft alignment whatever the hosel setting and my Titleist driver (with two different shafts) when adjusted for best performance (for me) gives very similar results. With no evidence, I believe puring your shafts is unnecessary spending and Titleist position on puring (i.e. they don't do it) is good enough for me.

I'm a mid teens handicap player, who has 4 different shafts for my driver (and yes I know I spend too much money on shafts). I had a Ventus pured out of curiosity and it did nothing for me. Some of my low handicap friends also found the same results.
A club builder I know told me that if you can hit your driver multiple times with the ball ending up in a 20 foot circle every time, then maybe you will see a benefit. Otherwise the best puring is just make sure the skinny end is at the clubhead and the fat end is where the grip goes, and that usually will give you the best results.
Me thinks that all the good quality shafts do not need to be pured, but if you want to spend the money for that slight possible improvement, go for it.