The Bench Journal
Notes from the deflection board — plain explanations of shaft spine, FLO testing, and how a properly oriented shaft changes what you feel at impact.
What Shaft Spine Alignment Actually Means
A plain-language definition of shaft spine, why it exists in nearly every shaft, and what "aligning" it during a build actually involves.
Read article →FLO Testing Explained: Finding the Flat Line
How the flat line oscillation test works, why it's used alongside a deflection board, and what it's actually confirming.
Read article →Spine-Aligned Driver Builds: Does Orientation Change Dispersion?
What actually changes on a launch monitor when the same driver shaft is rebuilt with a different spine orientation.
Read article →Iron Set Spine Alignment: Why Consistency Beats Any Single Spec
Why a set of irons with matched spine orientation can outperform a set with a "better" spec sheet but random spine.
Read article →Graphite vs. Steel: Spine Alignment Differences Worth Knowing
Whether shaft material changes how pronounced a spine reading is, and where the differences actually matter in a build.
Read article →Blue Ridge Elevation: How Asheville Air Changes Your Ball Flight
Why a fitting chart written for sea level quietly misleads golfers playing at 2,100-plus feet, and what we adjust for instead.
Read article →Put This to Work on Your Own Shafts
Reading about spine is a start — watching your own shaft on the deflection board is where it actually clicks.