All the radios mentioned have lots of range so that isn't an issue. The only radio I have a problem with is JR. The JR buddy box requires its own battery which has to be kept charged up and this also adds another potential weak link to the system. A lot of RC clubs have buddy boxes in the club house so newbies don't to buy one. Futaba and Airtronics are the 2 standards used at our club. We found out about the battery issue when we added a JR buddy box.[>:]