Is the center the at the top or bottom?
For Example: If the center main is at the bottom on a 16x19 racket. Measure 9 lengths from the top to the throat. You will start feeding from the Long side, through the center and to the Short side. If the center main were on the top, you would measure 8 lengths. Does that make sense?
Machines: Gamma 6004 2-point w/ Wise 2086 & Babolat Sensor Dual