I also want to add that another potentially unoticed benefit is the huge time savings I get in not setting up a new base every survey. Over time this is hours and hours to my life if not to effeciency and a blow to competition. On local jobs where I might have a couple part day field trips, the same base is used and after I finish one site I just change the job in the LS, drive over to new site and survey, without base fuss, etc....