I have had several prospective clients ask if I can use a walk behind mower instead of a rider. They keep telling me that the heavier rider is leaving ruts. I am finding a fair amount of residential clients are willing to pay the extra fees for me to use a walk behind versus a rider (takes longer). I am thinking of upgrading to a Turf Tracer, 60 inch, 23hp. Do you have any thoughts on the PSI on this unit versus a traditional Lazer Z?