I have been contemplating the purchase of a new LazerZ for next year. I was looking at the 52" LazerZ HP with the 23hp. Kawasaki. Or the 22hp. Kawasaki Liquid-Cooled with a 52" deck. Is it worth getting the liquid-cooled engine. I am only cutting 20 yards per week and they are all residential. Thanks for any help. It is greatly appreciated.