I am looking to add a 100 gal Lesco spray rig to my business. Up until now I have only used granular products with a rotary spreader and herbicides with backpack sprayers. I can get a used rig at a price too good to pass up. I am trying to figure out if it will make my job easier, more money and add more possibilities. I currently have about 40 residential lawns ranging from 5-20,000 Sq. Ft. that are on a fert. program. I also hydroseed close to 100 residential lawns a year. I am looking for any feedback on how I can get the most out of this machine if I buy it. Any recipes you can share for cool season lawns will help. I do have my applicators license.