Best Practice Golf Balls for Nets & Cages (UK): Real vs Foam vs Limited-Flight

The cage arrives, you bolt it together, and within a day you are standing on the mat with a driver and a bucket of whatever balls were already in the garage — some range picks, a few foam ones from the kids, maybe a lonely wiffle ball the dog half-chewed. That first bucket is almost always wrong. I hit balls in my own cage most days and I have put every one of these categories in front of a launch monitor in the kind of cages we sell, so here is the honest sorting of real vs foam vs limited-flight vs airflow: what each one is actually for, what it does to your feedback and your data, and what you should spend.

A fully contained cage changes the whole question. Because the net stops everything, ball flight stops mattering for safety — so you can hit the real thing. The one-line answer

In a proper contained cage, hit real golf balls. That is the whole reason a cage beats an open net: full containment means ball flight is irrelevant to safety, so you can practise with the same ball you play with and get feedback that actually transfers to the first tee. Foam earns its place indoors and with young kids. Limited-flight balls solve a problem the cage has already solved for you. Airflow balls are a garden toy. Everything below is the reasoning, because the exceptions are where people trip up.

Real balls: the default, and the only choice for data

Strike feel, turf interaction, the sound of a flush one, the sting through your hands on a thin one — every scrap of feedback your body gives you is calibrated to a real ball. Practise with anything lighter and you are rehearsing a slightly different swing than the one you take to the course. That alone settles it for most people.

The moment a launch monitor enters the picture it stops being a preference and becomes physics. Radar and camera units both read ball speed and spin off the actual ball. A foam or hollow ball compresses differently, spins differently and leaves the face at a fraction of real speed, so the numbers a monitor hands back are fiction — not slightly off, fiction. Every unit in our launch monitor collection assumes a real ball for accurate spin and speed, and that is not a brand quirk, it is baked into how the tracking works.

Feed a Mevo Gen2 (£1,199) or an R10 (£421) a foam ball and it guesses. Feed it a real one and the carry and spin numbers mean something. Here is the money-saving part: you do not need premium balls for cage work. My own practice stock is a mix of mid-price two-piece balls…