Now that I actually have a boat (bought a porta-boat at the show yesterday) I need a good portable depth finder to go with it. I've looked at the fishing buddies, but the only thing I don't like is that the cone is so narrow. Only 9 degrees, as opposed to 18-21 degrees on most other finders. I usually fish in water from 15-25 feet, so this is kind of an issue. I like the soft packs Cabela's sells with the built in rechargable battery, but they come with various finders already installed and seem rather pricey. I wonder if they sell just the pack and I can put my own finder in it.

Also, any tips on where to place a suction mount transducer?