I am looking at purchasing a Quick 36 for this coming season. Will probably go with the SuperFox model with 13 Briggs. My question concerns mulching with this machine - do you need to buy the Gator blades or will the stock blades do as good (or better) job? Also - for those that have purch. a Quick, is the Service Pack (belts, extra set of blades, etc) a good initial up front purchase. I will be mowing about 12 accts weekly and by no means will be running the mower ragged with wear. Thanks.