Mastery By Design

Over-weighting isn’t a beginner problem. It’s an everyone problem. Walk any dive boat and count the BCD inflators being held open during descent. That’s not a buoyancy technique. That’s a symptom. Over-weighting is the single most common error we see in experienced recreational divers — and it cascades into almost every other problem in the…

Divemaster is where you stop being a customer of diving. Of every certification in recreational diving, Divemaster is the most consistently underestimated. Most divers think of it as a resume line — the first professional cert, a step toward Instructor if you ever go that route. What it actually is: the point where your relationship…

Your dive computer’s algorithm matters more than its screen. Most divers pick a computer based on display size, wrist comfort, or whether it looks good out of the water. Reasonable factors — but none of them are the most important one. The decompression algorithm underneath the screen is what actually determines your risk profile on…

The day your dive stops ending at the no-deco limit. There’s a specific moment in every tech diver’s progression where the conversation changes. You’re not asking “how do I avoid decompression sickness” anymore. You’re asking “how do I plan a dive that includes staged decompression on purpose, with the gas to support it, and the…

New England water is cold. Your 7mm wetsuit is not the answer. If you’re serious about diving New England year-round — or pushing into technical diving where bottom times extend well past recreational norms — a drysuit isn’t a luxury. It’s a requirement. But a drysuit is not just a wetsuit that keeps you dry.…

Swimming over a wreck and diving a wreck are two different things. There’s a version of wreck diving that happens above the hull — you fin along the deck, peer into portholes, maybe drop into an open cargo hold with plenty of ambient light. It’s compelling. It’s also the safest, most forgiving version of the…

Is your valve drill correct? We see it every time a new tech student shows up for their first doubles checkout dive. They’ve watched the videos. They know the sequence. They reach back, locate the valve, and close it all the way down. Then open it back up. Except they don’t. They open it back…

130 feet is not just deeper. It’s a different dive entirely. There’s a version of you that hits 100 feet and feels completely in control. And there’s a version that hits 100 feet and spends the next few minutes quietly managing the fact that things feel slightly off — a little slower, a little heavier,…

Most advanced divers skip it. Every technical diver lives by it. Respiratory Minute Volume, sometimes called SAC rate or Surface Air Consumption, is the volume of gas a diver breathes per minute, normalized to the surface. It’s one of the most important numbers in gas planning, and the majority of recreational divers have never calculated…

Ask ten recreational divers what a backplate and wing setup is, and most will say it’s tech diver equipment, something for deep wrecks and decompression dives. That’s not wrong, but it isn’t the whole picture either. What a BP/W Rig Actually Is A backplate is a rigid mounting platform, typically carbon fiber, aluminum, or stainless…