I just purchased a 128LD trimmer and I'm having the same issues as others with the throttle response being sluggish and it seems as though it has a "miss" when it does throttle up. I haven't actually used my trimmer yet. I just started it to see how it would run. My neighber has an older 326 trimmer and the throttle response is great. Will the throttle response of the 128 be slower that the 326? Is the "miss" and throttle response issues common for the 128 trimmer?