CCTX: if you want to come and hang, i don't think that would be a big deal, but it's not a large presentation and I don't think the drive would be worth it.
It's in preparation for an ITC that i am taking in May, i'm doing it in front of University Scuba's Master Diver class this Wednesday in Arlington. It'll be short, only 15 minutes, but i would be glad to email anybody the powerpoint of it. It'll be on diving lakes, with emphasis on lakes in Texas and what there is to see in them, and techniques for diving low visibility boater infested waters.