Attack Angle Isn't Just a Driver Number
Most golfers have only ever heard "attack angle" discussed in the context of hitting up on a driver. Every club in the bag has its own ideal window, and most of them call for the opposite approach.
Attack angle measures whether the clubhead is moving upward or downward at the moment it meets the ball, expressed in degrees. A positive number means the club is still ascending at impact; a negative number means it's still descending. The driver conversation gets the most attention because a slightly positive attack angle, paired with the right launch conditions, genuinely does help maximize carry off a tee — but that's specific to a ball sitting up on a tee, not a rule for the rest of the bag.
Irons and Wedges Want the Opposite
Off the turf, a slightly negative attack angle — still descending through impact — is what produces clean, ball-first contact and the descending strike that creates proper spin and trajectory. A driver-style ascending strike applied to an iron shot off the ground almost always means hitting the turf before the ball.
Fairway Woods Sit in Between
Off a tee, a fairway wood behaves more like a driver and tolerates a shallower or even slightly positive attack angle. Off the deck, it needs to behave more like an iron, with a controlled, slightly descending strike. This is part of why the same fairway wood head can feel completely different depending on the lie, and why fairway wood sessions test both situations separately rather than assuming one number covers both.
Why the Number Gets Checked on Every Club
A driver session and a wedge session are looking for opposite results from the same measurement, on purpose.
Attack angle isn't a single target to chase across the whole bag — it's a different target for nearly every club, and equipment gets matched to whatever attack angle a player's swing actually produces on that specific club, rather than trying to force one universal number everywhere.
The Takeaway
If a driver session and an iron session at the same studio come back with different advice about attack angle, that's not a contradiction. It's the same measurement doing exactly what it's supposed to do for two different clubs.
Check Your Own Attack Angle by Club
Every session logs attack angle separately for the club being tested, cross-checked on both monitors.