So I see a customer in another part of the neighborhood who's yard I cut. She stops to say hello and says how happy she is with the way things look. She has a regional company treat her yard all season long. She had them before I started cutting her property. To me, they seem like a good reputable company. NOT Tru Green by the way but a regional company. All the lawns that I have seen that they treat always look good. Green and no weeds or fungus. So I cut one day last week and the company came and sprayed the following day. This customer tells me that they left her a note that said whoever is cutting your yard is cutting it too low and they need to be cutting no less then 4 inches. She relayed this to me and said I am happy with the way you're cutting it and Im not too sure why they said this. The lawn is green, not dry or looking burnt but they were adamant you cut it at 4 inches. She said Im happy with what you're doing so just keep doing it. I just wanted to let you know what they said. I told the customer thanks and that I am currently cutting it at 3 3/4 inches. Actually a tad higher. To be exact I am cutting at 3.93 inches. I looked in my Exmark manual at the setting I have it at. The book only has the setting for specific spacer settings and not every combination available. By the manual specs I have it at 3.75 and then I have another 3/16 spacer on top of that which equates to 3.93. My questions are; would you call the fert company and ask to speak to a manager and inquire as to why they have a tech telling a customer this? How would it be possible to tell the difference between 3.93 and 4.0? Would you be irritated or just blow it off since the customer was fine with my job? I just feel irritated that some guy is going behind me and indicating Im not doing what I should be according to his eyes? The other thing is this. On the Exmark, for those may or may not be familiar, it says in the manual to have at least one spacer between the spindle and blade for a good cut. It doesn't say that you have to but Im assuming they say that for a reason. If I want to go to 4 inches I can remove the spacer from below the spindle and be left with none between the blade and spindle. The other option is to jack up the mower, take out the axle adjustment bolts out and reposition the axle to the highest position. That entails readjusting the wheel drive and brake linkage. I really am not too sure how to adjust that properly and don't want to mess anything up. What do you think?