One of the most respected golf equipment review channel on YouTube, TXG Golf Experience has made their first foray into experimenting with FreeFlex shafts. https://youtu.be/7ed0zHQHSBo FF45 was compared to AF405 for longer distance, although the FF38 would have been the correct choice.Both FF and AF showed superior distance and accuracy over conventional shafts.he spine logo indicates the true center of the shaft where it is the strongest, and has been spine pured at factory. TXG Matt Blois mentions the FF45 shaft for slower speeds, but this is not so. The FF38 was recently used by WLD athlete Seb Waddell to set a new world record for both swing speed (169.6mph) and ball speed (240.8mph) We look forward to more experiments from the wonderful crew at TXG!