Glad to hear you'll be diving this weekend, Walter! I'll be out on the Mill Pond with some students. Hope you see you!
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Before going out and spending money on tech gear, you might want to research sidemount. Even though at this point you are only looking at taking a cavern course, that has been known to change the lives of many. Before you know it you are living, breathing, dreaming about caves. The next thing is buying the gear to do it and there are many more options available these days.
Joe, re-read my post. I stated, "Before going out and spending money on tech gear..." Just trying to provide the OP with all the options out there before a bunch of money is spent on new gear. I'm not trying to get anyone to change their gear right away.