I have a lawn that is 2 years old. Very thick (KBG,Rye,&Fescue). I am thinking to cut it at 2 inches before it starts to green. The frost went out today (3/8/2016). I normally cut it at 3 inches and right now the height is 3.5 to 4. I also plan to bag. My question is should I take more off or stay at 2 inch height.