I have been having this problem since I purchased my mower in August, but I love it so much I don't know what to do. It's a love/hate relationship. I mow mostly tall fescue & kentucky bluegrass lawns here in east tennessee. My brand new scag tigercat is leaving a strip of grass on the inside of the left tire. It will also leave major stragglers. On some lawns more than others. I have taken it to the dealer twice now. I have to take it again anyway do to the recent recall on most Kawasaki engines I'm sure is affecting a lot of you. I will get them to take a look again. Until then however I want to try a few things: 1)Blades: What blades does everyone use? I have heard a lot about Gator blades. 2)Baffle: I am aware about the adjustable baffle. What would be the best setting? What do most of you do? I had moved it down to 3 1/4 or 3 1/2 I believe. I cant tell a huge difference. I think I might try to move it up. 3) Anything you guys can think of!