Hi to all the spearos in the whole word. My name is Deon, 51y young and plan to dive till at least 80. The more I read on this forum the more I realize how little I actually know about this sport after 30y in the water. I am definitely going very soon for a freedivers course. You guys have queries on 30/40m dives. Hell, my limit is 12m although my PB for a static breathhold is 4m16s. I think I'm doing something seriously wrong.