I'm new to this site and have a ? about a used SCAG 48 belt-drive wb I bought recently. It has a fixed deck and I'm wondering what is the best position for the blades. The guy I bought it from has the deck set in the highest of three adjustment holes on the frame and adjusted his cut height with the spacers on the front wheels. He has the blades at their lowest height with the spacers on the spindles. The blades are almost even with the bottom of the deck. Would it be better to lower the deck and space the blades up or leave it like it is?