Hey Guys, Need a little help figuring this out. Just put on a new set of blades, changed all the belts and tightened clutch, new blower housing and am using the large whole screen and I am getting a small strip of leaves down the middle of the stripe. I also checked the sheer pin on the drive shaft and it is good to go. It's a 2012 MTGHS, 26 hp efi with a 52" deck. Any suggestions?