The Launch Monitor Data Blog

By Danny Hollis · Founder

This is where I write up the real sessions — what it is actually like to build and live with a garage golf simulator. A winter of garage practice. The day measured spin changed how I read my own numbers. Fitting a screen under a low ceiling. The cheap-monitor mistake that cost me a whole winter. Honest first-hand experience, never spec rehash.

A golfer mid-swing practicing in a home garage golf simulator bay.

Practicing With Data Without Paralysis: My Garage Routine

All that data can sharpen you or paralyse you. Here's the simple garage routine that keeps the numbers working for me, not against me.

A golf simulator hitting mat and turf surface in a garage hitting bay.

Mats Matter: How a Cheap Mat Wrecked My Data (and My Wrists)

The mat is the easiest piece to cheap out on and the worst one to get wrong. It cost me sore wrists and bad data.

A full golf simulator enclosure with an impact screen and turf hitting bay.

Hitting Net vs Full Enclosure: When I Finally Upgraded and Why

I ran net-only for ages and loved it. Here's what the full enclosure actually changed — and how I knew it was time.

An indoor golf simulator showing a course on the impact screen via projector.

GSPro vs E6: Getting My Launch Monitor Talking to Sim Software

The sim software is the fun part — once your monitor actually connects. My honest take on GSPro vs E6 and the setup.

A close-up of a launch monitor screen showing spin and launch parameters.

What I Check Before Trusting a Launch Monitor's Spin Number

Spin is the number most likely to lie to you. Here's the checklist I run before I believe a single spin reading.

A portable golf launch monitor placed on the grass behind a golfer at a range.

Radar vs Photometric: What Each Gets Right (and Wrong) Indoors vs Outdoors

Radar loves the open range; cameras love a tight room. Here's how the two technologies actually behave where you'll hit.

A budget home golf simulator hitting bay set up in a garage.

A Realistic First Home Golf Simulator on a Budget: What to Buy in What Order

A first home sim isn't one purchase — it's a sequence. Here's the order I'd buy the pieces in, starting over.

A golf simulator hitting bay built into a residential garage.

Ceiling Height Kills More Garage Sims Than Budget Does

I nearly bought a full sim my garage couldn't physically swing under. Ceiling height, not budget, is the real build-killer.

A launch monitor data screen showing ball speed, spin and launch angle figures.

Measured vs Calculated Data: What Your Launch Monitor Numbers Actually Mean

Some of your launch numbers are measured. Some are guessed from the measured ones. Here's how to tell which is which.

A portable golf launch monitor sitting on the turf in a home garage simulator.

My Launch Monitor Only Calculated Spin — and It Cost Me a Winter of Bad Practice

My first monitor never actually measured spin — it guessed it. I spent a winter fixing a problem that didn't exist.