I think the FLO/Spine debate in golf club building comes from a placebo affect. Most golfers like to know that everything they do is of a benefit to their game. It's like in Days of Thunder when Cole's tyres are a "Matched set and staggered special". Just the belief that something is better can bring on better results. I grew up in the Greg Norman Junior Golf Foundation and was coached by Charlie Earp himself. I was lucky enough to do a work experience fortnight with him in 1999 (1 week school time and 1 week in my holidays) and learnt a wealth of knowledge from him. He told me a story of when Greg would get a new set of irons and he wanted to "set them up" for tournament play. Greg would go to the range and hit 10's of shots with each club looking for the one that he felt was more consistent and felt the best. He would then remove the grip of the club he liked best and see where the weld line was. After finding that out he then removed all the other shafts and set the weld line in the same position. Charlie couldn't say if it made any difference or not as each set of irons had the shaft weld line set at a different position but when standing over a 4 iron into a hard Par 3 knowing you did what you could to have a perfect golf club, it made all the difference in the world.

I flo'd an old Mizuno driver years ago. I dont know why, but I instantly found it to be more consistent. Since then I have flo'd all my clubs new and old. I think the one thing for me is that when you use a spine finder and you feel the difference in the stiffness as you turn the club, surely if the spine is in all these different spots throughout the bag, then it has to affect the flex on each club. Whist it might not make a huge difference to us Ams, in my mind its just one less variable. Again, just in my mind. These videos are always interesting about flowing and spining.

Big thanks for taking the time to do this test. I don’t think the flow is a factor for most players, not even most pros. However, spine alignment definitely has an impact on the flex pattern.

top video into spine alignment and flo, Brilliant insight, it seems that spine and flo are very popular at the moment a couple of members at my club have been talking up the benefits of it yet their club striking is no different. Your video has shown me enough not to rate it as important as some golfers think. Keep them coming

I’m very intrigued by this as some people swear by it and say they feel the difference and then u get others who say it’s not worth it,I suppose it’s a little subjective but on that test it almost sounds like it may not be worth it

Also you should show the results after you epoxied to see if they bounce the same…..

At 2:55, is that the point where the shaft „rests“ or is that the point where the shaft could turn both ways? Regards

is the flow/spine set at 9&3 or 12&6?

Love the information. Sound on this video wasn't your best. Please keep up your good work

I hate to tell you but that laser doesn’t do anything cause once you use the actual head, your spot will change guaranteed simply do to different weighting etc. the best way to do it is with your actual iron head and use fishing line to stuff in the head so it’s tight. Then you can turn the head easily and find your correct spot on the shaft while using the actual club head