Stance Width Off
What is actually happening
Your legs are trying to give the swing what it needs, and they're guessing wrong. Too narrow, and there's nothing under you to turn against, so your body sways looking for balance. Too wide, and your hips can't turn at all, so your arms take over. Either way, the top half of your swing spends its energy covering for the bottom half.
What it costs you
A narrow base costs you balance first. You feel it on windy days and hard swings, when the finish wobbles and the contact scatters. A wide base costs you the turn, and the coil that makes distance goes with it. So you swing harder and get less. Both mistakes feel athletic while they're robbing you.
With irons, set your feet just outside your shoulders. With driver, go one shoe-width wider and stop. Wide enough to stay balanced, narrow enough to turn.
Shoulder-Width Calibration
Your body already knows its athletic base. This drill just asks it. Stand with your feet together, hop an inch off the ground, and land without thinking about it. Look down. That landing width, roughly under your shoulders, is where your body catches itself, and it's your iron stance. Address a ball from exactly there and hit five 8-irons, noticing how the finish holds without effort. Then step your trail foot one shoe-width wider and hit five drivers, feeling the extra room the bigger swing needs. Film both stances face-on and keep the two frames on your phone. They're your setup cards. Any time the strike goes loose on the course, the first check is thirty seconds against those pictures.
Is this the one costing you shots?
Film one swing and the analysis checks for it at every position, on your video.
Analyze my swing freeCurious how the measuring works? See what we measure at each position.