I live in the Milwaukee, Wisconsin area where most lawns are Bluegrass and I own a Quick 36" Dually. I have heard a bit about "pitching" the cutting deck such that the front is about 1/2" lower than the back. Will this make any significant difference in the cut? I already use a striping roller and have set the deck to cut at 2 1/2" inches (front and back). Although I hear about "pitch" as an option, I can't figure out the advantages and disadvantages of "pitching" a mower.