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Density Port Lab Interior Weight Port Fitting
The Port Journal

The Port Journal

Notes from the studio — plain explanations of what's actually happening inside a clubhead when we move weight between ports.

Density Mapping Explained

What a density map actually records, and why it matters more than a single CG number pulled off a spec sheet.

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Port Weight Increments

What a 2-gram jump in a single port actually does to launch and spin, and when a bigger jump makes more sense.

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Front Port vs. Back Port

The trade-off between spin control and forgiveness that comes with moving mass forward or rearward in a driver head.

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Reading a Density Map

How to actually read the printout you take home after a session, port by port.

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Port Torque & Maintenance

Why port screws back out over time, and the simple maintenance habit that prevents most of it.

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Single-Port vs. Multi-Port Heads

What you actually gain, and give up, when a head design trades four small ports for one large one.

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Put This on Your Own Head

Reading about port placement is a start — watching your own dispersion change on the monitor is where it actually clicks.