So I recently put a mulch kit on my x300 it was the kit right from the JD dealer. I am having problems with there being missed areas in the cut like a good amount just not getting cut proper. I am fairly sure i put the kit on correctly, and I am running the mower at full throttle. These are the first blades i bought for the mower so one odd thing to me was both blades had "right" stamped on them, not sure if that is a concern or not. I am just looking to see if anyone else has had this problem and if there is a solution.