Me and my Dad are trying to figure out what size of a mower(s) we should go with to start out, but we don't know what our yards will be like because we are just starting up and have yet to get many customers. What size mower do you recommend for someone who wants to buy a ZT or a couple, but doesn't have their accounts yet? The yards will probably very in sizes. Also, is there ever a point where you have 2 people on a ZT at property with different deck size? My main concern is that if we get two ZT's with different deck size, is it going to make the yard look terrible if there are different sized strips in certain areas of the lawn?