In my research of Walker GHS units, I have found little information or testimony for the MS. Obviously this unit is not intended for production or heavy commercial use. Anyone own, demo, or have experience with this model? Is it better suited for the 36" or 42" deck? Fuel tank size adequate at less than 2 gallons? Is it grossly underpowered? Will it handle the speed up kit? Is the smaller blower proportional to the unit size? Pricing?