4.5.3 Entering vertical and lateral pitch for thumb

4.5.3   measurement 

 Thumb pitch works exactly like finger pitch — you enter it into the pitch tiles around the thumb hole, and the tile is the direction. There's no direction to select from a dropdown. For the full mechanics of the pitch tiles, see 4.4.3 ; for the terminology, see 4.1.4 . 
 🛠️ How the Thumb Pitch Tiles Work 
 
 ✅ Forward — points toward the center of the ball . Enter forward pitch in the forward tile. 
 ✅ Reverse — points toward the outside of the ball . Enter reverse pitch in the reverse tile. 
 ✅ Lateral — the Left and Right tiles, by position. 
 
 Forward/reverse and lateral are separate tiles, so the thumb can carry both at once. The thumb and fingers are fitted independently — it's normal to have reverse on the thumb and something different on the fingers. 
 Note: To apply a pitch against a tile's default direction (for example, Right pitch on the left-side tile), scroll to the absolute bottom of that tile's drop-down for the cross-direction values listed as Rx , where x is the desired pitch. 
 ⚙️ Thumb Pitch Is Manual 
 Thumb pitch is manual data entry — there's no automation and no error validation behind these fields. Spectre records exactly what you type. 
 📋 Entering Thumb Pitch 
 
 In the thumb section, locate the pitch tiles around the thumb hole. 
 Enter the forward or reverse value in the correct tile (forward = toward the center of the ball, reverse = toward the outside). 
 Enter the lateral value in the Left or Right tile. 
 Review both before saving. 
 
 Related Sections 
 
 4.4.5 — Inputting finger pitch (the pitch-tile mechanics) 
 4.1.4 — Pitch terminology: Forward, Reverse, Lateral, Zero 
 4.5.4 — Thumb insert type and size 
 
 Tip: Because forward points to the center of the ball and reverse to the outside, the sheet layout tells you the direction — no sign convention to memorize. Enter each value in the tile that matches the direction you measured, and read it back since nothing here is validated.