How much more productive will I be with add a second ztr to my trailer? I like to run 2 man crews. I am a small operation and my goal is buy 1 ztr each year and the years to come. Last year I could get all of my accounts done and serviced in 3.5 days. Looking to increase my accounts this year by 50%. Will I be able to use a 2 man crew and get accounts serviced in 5-6 days. P.S. I usually worked 8-10 days.