The one thing that scares me about operating a submersible on/in the lake actually would be surfacing. I'd want a darn good sonar system, so I knew for sure what was on the surface as with my luck, the son of the best liability lawyer on the planet would be waterskiing, and I would manage to "up scope" right at the twenty foot mark of his thirty foot tow rope
, or I would surface twenty feet in front of "the Mount"
..