TaylorMade P790 by year: 2017 to 2025 lofts and lengths
TaylorMade P790 irons by year: the 2017, 2019, 2021 and 2023 sets share one loft chart, 2025 is stronger, and 2017 lengths use an older method.
The Golf Club Reference journal
Articles for the clubs in your bag
Practical reading on identifying an older set, understanding its original specifications, and checking the clubs you actually own.
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Callaway Big Bertha irons by year: 2015 to 2023 lofts
Callaway Big Bertha iron sets from 2015 to 2023: the 2015 and 2023 factory lofts side by side, the 2016 OS, 2019 and B21 sets, and how to tell the heads apart.
PING i210 vs. i230 vs. i240 irons: lofts by generation
PING i210, i230 and i240 print one standard loft chart, and the i500 and i525 share another. Factory lofts by generation for the i-series, iBlade and Blueprint.
Pro V1 markings by year: what year is my Pro V1?
Date a Titleist Pro V1 or Pro V1x by its sidestamp: what 392 and 332 mean, the arrows of every generation from 2000 to 2025, and the Left Dash.
Golf club letters: what PW, AW, GW, UW and W mean
What the letters on golf irons mean, brand by brand: PW, P, W, AW, GW, UW, SW and LW, with factory lofts from 198 iron charts and the labels that mislead.
Titleist T100, T200 and T300 lofts by generation
Titleist T100, T200 and T300 lofts for the 720, 2021 and 2023 generations: which charts repeat, why only the T200 moved and how to tell the heads apart.
TaylorMade M4 irons specs: lofts vs. M2 and M6
The 2018 M4 iron sheet repeats the 2017 M2's lofts and lies, and the 2019 M6 repeats them again with longer printed lengths. Full chart and head cues.
Callaway Apex irons by year: lofts from 2014 to 2025
Fifteen Callaway Apex charts from 2014 to 2025: 7-iron and pitching wedge lofts, which sets repeat a table, and the back-of-head cues that separate them.
Titleist AP1 vs. AP2 irons: lofts from 2008 to 718
Ten Titleist spec pages, five loft charts. See which AP1 and AP2 generations share a chart, how far apart the two families sit and how to read the hosel code.
Srixon Z 585 vs. ZX5 vs. ZX5 Mk II irons
Five Srixon heads share one standard loft, lie and length chart. See where the pages differ and how to tell the sets apart from the badge.
Old PING irons by year: Eye 2, Zing, ISI and i3
Match a classic PING badge to its introduction year and read PING's own factory lofts for the Eye 2, Zing, Zing 2, ISI and i3.
How to stop slicing the golf ball
Read your start line, then fix the open face, out-to-in path and heel strikes that make a golf ball slice. Four original diagrams.
PING G400 vs. G410 vs. G425 vs. G430 irons
Compare four G-series factory charts, spot the two identical ones, and see where G430 lofts and wedge names change.
Golf club length: single-length irons and women's clubs
Discuss equal-length versus conventional irons, when women's clubs are worth trying, and how to compare lengths before altering a set.
TaylorMade Burner 2.0 iron lengths: read the color key
Separate the catalog's men's and women's length figures, keep graphite annotations clear, and record the right build when checking used irons.
TaylorMade M2 vs. M2 Tour irons: the 2016 model difference
Choose the right factory chart for M2 or M2 Tour, compare selected original specifications, and clarify an ambiguous used-set listing.
Titleist AP2 offset: inches vs. millimeters
Convert selected AP2 (712) and 718 AP2 offset figures into the same units, and see what matching rounded values establish.
Older Titleist iron serial numbers: what they can tell you
Record an older set's serial markings, read dated stock/custom guidance, and keep original build history separate from authenticity.
Titleist 718 AP3/AP2 combo sets: where loft gaps change
A worked check of the loft steps where AP3 and AP2 heads meet, with questions to ask about an altered used set.
TaylorMade M6 vs. SIM2 Max vs. Stealth irons
See what changed across three factory loft charts and why a printed 7-iron length needs more context.
How to identify older golf irons
A photo and specification checklist for finding the right generation, recording the actual set, and knowing what a factory chart cannot confirm.
TaylorMade M2 irons: 2016 vs. 2017
Compare the head cues and original specifications behind a model name used for two generations.
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