International Clubmakers Guild
Ohio Valley Golf Association Amateur Tour

Conquest Custom Golf

Professional Golf Club Fitting                  Professional Golf Club Building


I then find the single spine in steel shafts. When using graphite shafts, there are 2 spines and they are usually 180* apart.  I put the "soft side" toward the target initially.  This is called "spining".  I them find the FLO, or "flat line oscillation" of the shaft.  Many will call this "Puring".  When performing this function, which I always do at no additional charge, I can insure that each shaft bends the same way every time!  I didn't say you'd swing it the same way every time, that is up to you!  Properly fitted clubs are easier to swing more consistently when this function is performed.  This process is NOT performed with mass produced equipment!  To the left is a perfect example of FLO'd shafts.  As noted, the consistent impacts are the same club AFTER having the shafts spined & FLO'd.

The inconsistent impacts are mass produced installed shafts.  The clustered impacts are the same head and shaft after spining and FLOing has been performed and re-installed!

The following is a good description of the "Full Blueprint" building process only available through independent club fitters and club builders as myself!


Irons first!  If using taper tips shafts, they are all "pre-trimmed" at the factory, strictly to speed up the assembly process.  Nothing wrong with that.  Each shaft, regardless of length, weighs about the same.  When using parallel tips shafts, my personal preference, I can create a much more consistently performing set of clubs.  Each raw shaft weighs about the same and when trimmed at each end of the shaft to attain a general frequency and length, it more or less creates flighted shafts (check out the EI curves of a parallel iron set sometime!).


I take each of the shafts, letter them A thru F, G, H, etc, lightest to heaviest as there tends to be a 2 or 3 gram variance.  I then place a 454 gram weight on the tip of the shaft and measure the stiffness of each shaft 15", 25", and 35" from the tip, with a frequency meter, and measure in terms of frequency (stiffness).  I then, with a proprietary frequency sorting program, sort the shafts softest to stiffest.  The softest shaft goes into your longest iron, the stiffest into the shortest iron.  Remember that they are "officially" the same flex but in the real world they tend to vary about a half a flex.  This method will yield a very consistent frequency'd set of irons.  Taper tips are a little more inconsistent compared to parallels, but nothing to stress over.  I just prefer to be in control of the shaft resultant stiffness hence my preference, but I'll use a taper tip if the golfer performs better with it during the fitting, and it does happen.  If any parallel shaft is off by more than 3/4's of a flex, I won't use it.  That is rare though, as well made shafts tend to not vary more than a 1/4 flex and I only use well made components.   

Spine/FLO'd Impacts vs a Retail Installation
Golf Digest Top 100 Club Fitter 2013/2014
Professional Clubmakers Society Certified Clubmaker
Association of Golf Club Fitting Professionals
Golf Digest Top 100 Club Fitter 2015/2016
Golf Digest Top 100 Club Fitter 2011/2012

I prefer to MOI Match irons vs Swing Weight matching as they tend to result in much more consistent clubs, easily the best feeling irons you can possibly own.  Nothing wrong with swing weighting, it's just a 94 year old procedure and I moved on to the 21st century about 6 years ago when the process was finally refined.  There is NO extra charge for this upgraded service!


Swing weight matched clubs will vary about 3.5% in the amount of energy it requires to swing say your 9 iron, compared to your 4 iron, from Point A to Point B.  Clubs are considered "MOI Matched" if they are within 1% of each other.  I do not let them out of my shop unless they are within 1/2 of 1% of each other and many times, my final builds are within 1/4 of 1%.


If you truly want swing weight matched clubs, it's not a problem.  Just sign the release form I developed instructing me to build them so that they are all different in the amount of resistance displayed, vs matching the resistance displayed.  It's completely your decision!  I have not built a swing weight matched set, by customer choice in 6 years.


If you suffer from arthritis, tendonitis, bursitis, etc, in the shoulders, elbows, wrists, or hands, consider Pro Soft Inserts ....... vibration dampening devices that I can install inside the shaft just before the grip goes on.  They rest below the lower hand and absorb 60%-70% of any negative vibration from fat shots, toe shots, etc.  They are only $2.50 so they don'f break the bank!  


I am not a fan of MOI Matching woods as you do not swing a driver the same way you swing a fairway wood as a general rule.  I tend to swing weight match woods, and obviously still spine/FLO the shafts to increase the center of face strike frequency.