I got a trimix cert in 2008. for three years I looked and waited for the comp that would do everything I wanted, had user replaceable battery, and was rugged. When I saw it I knew it was what I wanted. Got to play with one at a show in ohio and within 15 minutes was planning dives, setting mixes, and scrolling through the dive log. The manual looks like it was written by divers not lawyers. So after saving, selling, and some tax refund money I got my Shearwater Predator. And if I would ever need a second comp another Predator is the only thing I'd look at.
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