Headed to TN in March with a bunch of guys (lookin like we'll have atleast 6-7 boats), and was wondering about the reliability of VHF radios in that environment. My only exposure to VHF stuff is on Lake Erie, where my 5w handheld does just fine, but then again it's a straight shot to whoever we're talking to. What can I expect when we're in TN and a few miles apart from each other in coves, back behind those tall bluffs? We used 2-way walkie talkies last year, which were great as long as you could see the other boat you were talking to. Should we expect that same type of performance with the VHF's? Thanks!