Here's how we do it. One man starts the mowing doing the front yard first, very key. I edge first then trim and then start blowing, usually finishing the blowing while the other finish's mowing the back yard. We usually finish around the same time. On a very big yard after I finish blowing I will take the other mower out and help finish the back yard, but this is very rare and only happens during non long growth periods, when the blowing doesn't take very long. This also depends on what your primary mower is and whether or not you bag. If your using a 36 belt you may have a need for 2 mowers, but if you are using a 48 or bigger ztr or walkbehind with velke, there will be very few yards that take longer to mow than edge, trim and blow. We use a 52 stander also have 48 scag as the second mower and for 4 foot gates, only gets about an hour of use per week.