I noticed that in high grass my snapper w/b is leaving a small line of uncut grass. I acquired my mower from my brother and I know he was ordering blades on-line. It has gator blades on it now but I cannot think of why it is leaving a line of grass uncut on every pass. It seems like it only does it in high grass or just maybe it does it all the time but it is just more noticeable in taller grass. My only thought is that maybe the blades are a inch or two shorter then what they should be. Any thoughts or advice???????