What are you going to do with the belt reel? If you attach it to a shaft or gun as a main line, this sounds kinda crazy. Murat had a good point although blown up a bit. Imagine what a large fish could do. I don't know what you hunt but the big boys around here can easily drown a diver. In any case, this blet reel sounds more like a hassle than anythign else. Clipping a float line to your belt is a good idea as long as the fish you're hunting will still approach with a long rope reaching from the surface pointing directly to that large strange creature lying on the botom trying to blend in. "Yeah we see there and we aint coming in!" We got some of those punks here. If the fish are really spooky, we have to drop the float line and just hunt without it. Most of the wary fish here are under 10 pounds so we can usually horse them up. On the Big Island most guys don't use a reel (present company included). One of my partners had a 70 pound Ulua swim two feet in front of his gun while diving with no floatline. Luckily, he stoned the fish or bye bye gun. He also had an Ulua estimated about 60 pounds attack him when he was on the bottom. He said he was waiting for some Kumu (goatfish) to come in when he felt something bash into his shoulder. He though it was a shark but looked up to see the Ulua sitting there staring at him. He never got a shot off though. Point is you never know what's going to happen and with more line in the water there is more changes for *%#! to happen. Be careful if you do use the belt reel, don't want to read about freak accidents.
Brad
