I took down those VHF channels mainly due to the fact I can't pick them up well (I don't have a VHF antenna so you could barely hear what they were saying), but there was also a lot of casual traffic. The KDH ocean rescue VHF channel is used solely by the lifeguards on the beach while some of the supervisor and all of the dispatch traffic is on the P25 system. Since it's their own VHF channel, they are free to talk more casually (mostly just status checks and the like), but it causes a 2+ second delay in scanning Dare's P-25 and NC's VIPER system every time they key the mic (which is frequently), and the majority of the time nothing is heard, so it causes a lot of missed traffic
As for Station 50's VHF channel, I may turn that back on, but it's hit or miss if I can pick up anything. They do use that channel for incidents (mainly for vehicle-to-vehicle comms). I'll see if I can adjust a few settings to pick it up better.
As for Surf Rescue (Duck/Southern Shores), I can't pick up their VHF lifeguard channel from my location , but it isn't used much and their supervisors use the P25 system almost exclusively for everything, so nothing is missed there. I also can't pick up Corolla, and that's outside of my target area. All of Nags Head and Kitty Hawk lifeguard and ocean rescue personnel use the P25 system as you know.
If I created an ocean rescue channel, it would be dead 9 and a half months out of the year. Anyway, I will see about getting Station 50 VHF tac channel turned on again. As for Kill Devil Hills, all of the more serious stuff is heard on the P25 system, so you aren't really missing much.