To get my sprayer to be spot on I had to alter the timings.Ahhhh could be……
If that's not possible then the other way would be altering the measurements to the seeder.
Interested to know how you get on, my 750 is unlocked to section control, I'm sending position and speed from the 750 to the drill, seems a small step to get it to add section control switching instead on the finger switch.