Hey AMkee - I think I may have mentioned to you that I took a trip out of San Diego to dive the kelp beds. The first dive at Green Tank was around 80 feet and my brother and I agreed on the rule of thirds since this was to be the deepest dive of our dive careers. Once either of us hit 1000 PSI we began our ascent. I think we ended the dive somewhere around 600/700 PSI. We just took it slow coming up. It was nice knowing we had plenty of air especially at those depths. Be safe and looking forward to diving Laguna with you real soon! :)