What is the process of recutting a sail?
I have had two mains recut - different boats. Each time they took some fullness out of the center by taking apart the old seams (these were standard panel dacron sails).
They took a calibrated curved slice out of each side and re-seamed. Part of the cloth removal, and it was subtle, was bringing back the whole curve shape to where it was before years and wind pressure had migrated it aft.
Cloth was in good shape and not rotted. It worked wonders for another several years until I could budget for a new main. Not sure if all seams were opened.
I do recall that when a new quality dac. sail cost about $1500, this was only about $250.
A bargain, all things considered.