Fitting guides, swing speed education, technology deep-dives, and honest advice from the engineers and fitters behind AutoFlex and AutoPower.
Yana Wilson captures her first LPGA win at the 2026 Dow Championship — playing Dumina AutoPower Snipe shafts in driver, fairway woods, and hybrid.
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Most amateur golfers play driver shafts 10-20g heavier than they should. Three clear signs you're leaving distance on the table — and how Dumina's lig…
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Swing weight is the most misunderstood measurement in golf equipment. What D0-D2 actually means, how it affects your swing, and why KHT works best at …
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Nervous about your first Dumina fitting? Here's exactly what happens — from launch monitor setup to selecting between AutoFlex and AutoPower. Walk in …
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Many golfers assume the AutoFlex is only for fast swingers. Here’s the truth: with the SF305X and SF405 models, slower swing speeds (under 85 mph) may…
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Your hybrid isn't a miniature fairway wood and it's not a bulky iron. Here's why it needs a shaft built specifically for its unique loading dynamics —…
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LPGA's No. 3 long hitter Yana Wilson games Dumina AutoPower Snipe in driver, fairway, and hybrid. A breakdown of her bag setup and why she chose KHT f…
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Complete AutoFlex swing speed chart covering every model: SF Series, Dream 7, FlexOne, JOY365, AutoPower Flex, AutoPower Snipe. Match your driver swin…
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A three-way comparison of the premium shaft manufacturers: Dumina (AutoFlex/AutoPower with KHT), Fujikura (Ventus with Velocore), and Mitsubishi Chemi…
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A complete head-to-head comparison of autoFlex Dream 7 and SF Series shafts. Weight, feel, launch profile, swing speed fit, and how to pick between th…
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AutoFlex is not a standalone brand — it's a shaft line manufactured by Dumina Co., Ltd. The difference between Dumina, AutoFlex, and AutoPower explain…
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A head-to-head comparison of the AutoFlex and FreeFlex ultra-light shafts. Both promise effortless distance through lightweight design — but their eng…
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Counterfeit AutoFlex shafts are everywhere on AliExpress, DHGate, and unauthorized eBay listings. A complete guide to spotting fakes, avoiding them, a…
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Finding the right golf shaft doesn't require a professional fitting studio. Dumina's self-fitting system uses swing speed and swing weight to help gol…
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The best driver shaft for a mid-handicapper (10-20 HCP) balances forgiveness, launch, and feel. AutoFlex SF405 and Dream 7 are strong candidates — her…
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Full-length KHT or strategic KHT? A complete side-by-side comparison of Dumina's two shaft families — specs, feel, fit, and how to choose between them…
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Dumina (AutoFlex & AutoPower with KHT) vs Fujikura (Ventus with Velocore). Two premium brands with opposite engineering philosophies. Full compari…
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CPM (Cycles Per Minute) is how Dumina measures and matches every shaft to exactly ±2 CPM. Here’s what CPM means, what the numbers look like across the…
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The graphite vs steel iron shaft debate, explained. Graphite iron shafts offer weight savings, vibration dampening, and swing speed gains — but steel …
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The driver head gets all the marketing attention, but the shaft is responsible for delivering the clubface to the ball. Here’s why shaft fitting matte…
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At $490-$880, AutoFlex is one of the most expensive shafts on the market. Here’s exactly what you’re paying for — KHT technology, ±2 CPM precision, Ko…
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Ava Chen (Brooklyn, NY) and Lucy Cui (Honolulu, HI) won their divisions at Augusta National's 2026 Drive, Chip and Putt National Finals — both playing…
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Ever wondered what goes into a Dumina AutoFlex shaft? Here’s the journey from raw Japanese carbon prepreg to finished KHT shaft — including the R&D, t…
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Why lighter and more flexible isn't a compromise — it's the science. A complete guide for golfers under 95 mph looking to pick up real distance.
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Most shafts use flex labels. AutoFlex uses frequency. Here's why CPM is the most accurate way to match a shaft to your swing.
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Launch monitor data from real fittings. What changes in ball speed, spin, and dispersion when you switch to KHT.
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Counterintuitive but proven. The relationship between shaft weight, swing speed, and energy transfer at impact.
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A side-by-side breakdown of every SF Series model. Swing speed ranges, feel profiles, and who each shaft is built for.
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A rare look inside Dumina's South Korean facility — how proprietary high-modulus prepreg is rolled, cured, and frequency-matched to ±2 CPM.
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Plugged In Golf's Kinetixx FlexurX review compares it directly to AutoFlex as the category benchmark — quoting the AutoFlex loading feel as the gold s…
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A MyGolfSpy forum member published a detailed, data-driven review of the AutoFlex SF505X driver shaft — covering launch monitor numbers, on-course per…
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Callaway Golf lists the Dumina AutoFlex SF405 and SF305X as premium custom shaft options — a significant OEM endorsement of Korean KHT technology.
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TourSpec Golf covered the launch of Dumina's two new AutoPower shafts — Snipe and Flex. How these strategic KHT shafts bridge conventional and full KH…
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Titleist R&D has validated the Dumina AutoPower Snipe shaft — passing their rigorous testing process for premium custom options. Both AutoFlex fam…
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Golf.com reports the AutoFlex is the hottest-selling driver shaft on Fairway Jockey — the leading online custom club marketplace.
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