This will be my first full season using my new Scag Turf Tiger since I bought it late last fall. I was wondering in what conditions you use the different blades? The blades that came on it I am assuming are the low lift or straight blades. I currently have the mulching blades on it with the chute blocker that I used to chop up the leaves last fall. I m getting ready for spring and need to know which blades to put on it for the spring grass? How many different blades are there, and when and what conditions should I switch to the other ones? Can an experienced lawn cutter fill me in on this?