Irons Fitted to Where You Hit the Face
Almost every iron problem we see resolves into one of four things: lie, length, shaft weight, or a set that has quietly drifted out of spec.
Five Passes Through the Set
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Map the strike before touching anything
Face tape on your own 7-iron for twelve swings. Where the ball meets the face determines what every later number means: a heel-biased pattern and a centre pattern want opposite lie corrections even when the ball flight looks the same.
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Read lie off a board, not off a launch monitor
Sole tape on a lie board tells you the truth about how the club sits at impact. Static lie fitting from height and wrist measurement is a starting guess and we treat it as one.
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Set length from the strike, then re-read lie
Changing length changes lie. Anyone who fits them in the other order, or fits one and not the other, has left you with a club that sits differently from the one that tested well.
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Choose shaft weight before flex letter
Weight controls where the club feels like it is in the swing and how much of a change you can actually repeat. The letter on the label is not standardised across brands and we do not treat it as though it were.
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Gap the whole set, corrected
Carry medians for every iron, adjusted for the day's density altitude, laid out as a strip. Thin air stretches everything, so the top of the set converges here in a way it does not at sea level.
Why the Top of the Set Runs Together Here
At sea level a well-gapped set steps down in even increments all the way to the long irons. At 5,312 feet, the reduced drag helps the faster, lower-spinning clubs more than it helps the shorter ones. The result is a 4-iron and a 5-iron that finish within a handful of yards of each other while the gap between the 8 and the 9 stays honest.
This is one of the more common reasons a player who moved here from a lower elevation feels that their long irons stopped working. They did not. They compressed together, and the fix is usually loft spacing or a hybrid crossover rather than a new set.
Worth checking first: if you have owned your irons for more than four seasons and never had them checked, book a loft and lie audit before a fitting. Roughly one set in three has drifted enough to change the answer, and the audit costs a fraction of a session.
Head Category, Honestly
Blades, cavity backs, hollow-body players irons and game improvement heads are not a ladder of skill. They are a trade between forgiveness on off-centre strikes, launch height, and how much feedback the club gives you.
The strike map from the first block settles most of this argument without anyone having to be diplomatic. A player whose pattern is tightly grouped can take the head that gives them information. A player whose pattern spreads across the face is losing real distance to off-centre strikes and should take the forgiveness, regardless of what the set looks like at address.
Blended Sets Are Normal
There is no rule that all eight heads must match. A common build here runs a forgiving long end into a more compact scoring end, with the shaft and the length progression kept continuous so the set still feels like one thing. We only do it when the numbers justify it, and the card records why.
Bring the Set You Play, Drifted and All
We measure everything cold before a ball is hit, so nothing needs cleaning up beforehand.