We just purchased this mower in April. It has been nothing but OUTSTANDING. However this last time we mowed (it has been mowed 6 days prior), it was leaving strips of cut grass up the middle of the deck path. The first few times we cut the lawn, the grass was longer than it was this time. We have had this same problem with other mowers we have owned and were never able to rectify the problem. Any suggestions? LOVE this mower, it has all the power we need to mow our 1+ acres of lawn, turning radius is amazing, foot speed and directional controls ROCK, love the bigger gas tank. Would just like to NOT have this problem all the time with this mower as it becomes an issue of time having to go back over the cut strips of left-over grass.