I have not run Jd swath control but row flow is very easy to use. Self calibrating and more forgiving on speed. Uses both time and speed to know when to shut clutches off. Deere is time only and you have to be at the same speed every time. I usually try to be at the same speed all the time but if I switch fields and am planting slower or faster I may not slow down to the same speed that I did in the last field just because of gear and throttle speed (no IVT). Last time I checked Jd swath control unlock was $2700 and paid $1700 for row flow 2 years ago. May have went up some by now but I dont know. Some correct me if I'm wrong on how the systems work but that is how it was explained to me. I dont have any experince with Jd swath control as the only thing I use it for is steering but I sure do like row flow.