An all-arms jumper feels strong. That's the trap. Muscling the ball gives you the sensation of power while quietly producing a shot that's flat, short, and streaky — because the muscles doing the work were never meant to be the engine.
Where shots borrow their power
Every good jump shot borrows its power from the ground. The dip — that sink of the hips before you rise — is the borrowing. Hips drop, legs load like a spring, and when you jump, that stored energy travels up through your body and into the ball. The arm's job is direction, not distance.
Dip depth has a livable range. Sink too little and the spring never loads, so the arms take over and the shot becomes a push. Sink too far and the shot turns into two separate events — a squat, then a heave — and the rhythm dies in between. You're looking for a dip deep enough to load and quick enough to flow.
All-arms shooters almost always live on the shallow end, and most have no idea. The dip eroded gradually — casual shooting, tired sessions, the habit of firing quickly — until the legs became decoration. The tell is in the results, not the feel: shots that die on front rim, arc that flattens as the session goes on, and a range ceiling you can't push past no matter how much stronger you get.
Check the gauge
You can't feel a shallow dip, but you can measure one. How far your hips actually sink in the load is a number CoachVision reads off a side-on phone clip — and most all-arms shooters are genuinely surprised by how small theirs is.
The way back is Chair Shooting, because a chair makes the leg load non-negotiable.
Put a chair a comfortable distance from the rim — start around the free-throw line. Sit tall with the ball in your shooting pocket. Now shoot by driving up out of the chair in one continuous motion: legs push, body rises, ball rides the rise, release as you come up. You physically cannot get out of a chair without your legs doing real work, which means every rep re-teaches the feeling you've been skipping. Three sets of 10.
Pay attention to what the ball does. Most players notice immediately that the shot feels easier — same distance, less arm. That's not an illusion. That's the loan from the ground coming through for the first time in a while.
After each set, take five normal jumpers and chase that same easy feeling: hips sink, legs fire, arm steers.
Your legs have been ready to help this whole time. Three sets of ten is how you let them.