The length of the flick is the strength of the aim, and you can see it leave

The rally flick was read as three lanes: sideways past 0.38 of its own length
took the whole corner, a hair under it took dead centre, and nothing lived in
between — "sometimes applied very strong, sometimes it barely does anything",
with no way to tell which one you had asked for. swayOf reads the swipe's LENGTH
as a continuous strength, exactly as the serve already did, and doHit spends
that instead of the lane vote. Keys keep the full lane; the opponent's aim has
no length and is untouched.

That is also what hands the OUT back: going out was never a choice, because
every aimed shot took the full width and then the scatter on top. Below about
0.7 of a full swipe — the line minus aimError, over the width timing can earn —
the worst mistiming in the game cannot sail it now, and above it the old risk
curve is exactly as tested.

And the aim is drawn while the thumb is still moving: the placement ring is a
receipt that arrives with the ball already gone, so the same ring is shown live
with a ray from the player's feet, cream while the ask is safe and hot once the
sway crosses that derived threshold. The receipt goes red when the shot really
is out, so the two rings together are the lesson.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

src/state.js

@@ -119,6 +119,8 @@ export const G = {
   hurtT: 0,           // s of post-hit grace left; also drives the red hit flash
   hurtFlash: 0,       // s of the impact PULSE left (the persistent damage vignette reads hp directly)
   placeMark: null,    // {x, z, t} — where your aimed rally shot is going (match): the flick made visible
+  swipe: null,        // {fx, fy, mag} — the rally flick WHILE the thumb is still moving, so the width
+                      // its length is buying is visible before the ball leaves (input.js sets it)
   asideT: 14,         // s until the umpire's next unsolicited remark (TUNE.asideEvery)
   praiseT: 0,         // s until the next praise word is allowed (TUNE.praiseEvery)
   bossDue: 0,         // chapter number the schedule owes you — fired at the next hand-cleared court