The Trumotion feature can be wonky at times...especially with fast moving content. If you leave it turned on, you can expect it to create tracks at times. If you turn it off the ill effects go away. You can try playing with the sliders to find a happy medium. Personally I leave it at "Smooth" (I kinda like the soap opera effect on movies) and it isn't too terrible for me. To be honest, Trumotion is a bit of a gimmicky effect and It really does little for video material and sports and this set handles such content just fine without it.
I too like the soap effect... looks more like a tele-novela version of a soap though. It took some getting used to and I find that during a action movie I will turn the settings down so it doesn't create so much ghosting artifacts. Another thing I noticed though it doesn't do the ghosting as much if you're using a 1080p source vs a standard def.