Custom Built Irons – The Swing Easy Way

• Shaft type, weight and flex are determined in the fitting process.
• All shafts are sorted for weight and frequency. Lighter weight and softer frequencies are used for the long irons and the heavier, stiffer shafts are used for the short irons.
• All the heads are individually weighed for swing weight matching. Starting with the longest iron in the set, each head should weigh 7 grams more than the previous head.
• Ferrules and grips are selected.
• Using a swing weight spreadsheet, swing weights are approximated. Head weights, shaft weights, lengths and grip weights are entered into this sheet. This calculates the predicted swing weight and weights will be added to the individual heads that don’t meet the swing weight goal.
• Starting with the longest iron, this shaft is mounted in the Mitchell Golf DigiFlex frequency machine at the correct length and the head is mounted to determine the initial flex. Shafts will be tip trimmed to meet the desired flex value. Sometimes trimming five or six times. If the target frequency is 301, small amounts are trimmed away until the exact value 301 is achieved. If weight is to be added, it is added before the final trim. Then the shaft is measured to determine how much was trimmed from the total length of the shaft and recorded. This is helpful information for trimming the rest of the set, since each shaft is individually trimmed, never cutting all of the shafts at once.
• The tip of the shaft is prepped after it is trimmed and all cut edges are de-burred.
  The butt is cut to length, de-burred and mounted in the spine finder. The hard spine for steel and the hard and soft spine for graphite shafts are marked.
• The head is put back on the shaft, mounted in the frequency machine and a laser is attached on the tip end of the shaft and working in small increments the exact position where the shaft flat lines when it is oscillated (FLO) is marked for assembly.
• Proper swing weight is checked with a split grip to find any length errors. i.e. if the SW is wrong, a mistake may have been made when the shaft was cut and a new shaft is used to start again.
• The heads and ferrules are epoxied onto the shaft, cleaned and left to cure.
• Once dry, the ferrules are turned to match the hosel OD and they are polished.
• Grips are blown on using air, no solvent. Build up tape is used as necessary.
• The clubs are cleaned and shaft labels are applied.