window switch
I have my window switch set so that I start spraying at 3800 rpm and stop spraying at 6100 rpm. I have a 3500 stall speed converter and my shift points are set at 6400 rpm. I guess you could start and stop your spraying via the arming switch, but that would be a royal PITA. With the window switch, you arm your system and forget it.
You are correct its not as easy to mess up with the automatic and no window switch but the chance is still there.
Dave



