I just purchased a new 27hp 60" LC Lazer. This machine is unbelievable and is the best out there. There is just one problem I have been having. I live in Nebraska where the bluegrass grows fast and is always sticky and moist in the spring. I sharpen my blades every night or there abouts--about every 6-8 hours. Even when I sharpen the blades, the grass looks like the blades are dull and it rips the grass and makes the tips appear brown. I have a sharpener and even the first yard I do, it still happens. Is this just from the time of year or should I be doing something different? Thanks.