About this episode

Ed Martin discusses his journey in the spearfishing industry, the Shark Shield saga, and insights on carbon fibre fin construction.

NSP:314 — KillShot, Deep Apnea & the Real Shark Shield Story | Ed Martin Ed Martin is one of those blokes who genuinely can't help himself — after years running a dive shop, guiding charters, and building timber spearguns under the KillShot brand in the Florida Keys, he bought carbon fibre fin company Deep Apnea, got involved in bringing Shark Shield back to market, and watched it all peak and crash at the same time. He's since closed the shop, sold the boat, moved 400 miles north to an 80-acre former turtle farm near Ocala, and is now running two manufacturing businesses out of separate buildings he's literally wiring himself. This episode covers the real Shark Shield story, hard-won business wisdom for anyone thinking about turning their spearfishing passion into a paycheck, and an in-depth breakdown of carbon fibre fin construction — including why "soft, medium, hard" is a terrible way to choose your fins, and what actually matters. If you're a spearo who thinks about gear and business, this one's worth a full listen. KEY TOPICS COVERED: Why Ed closed his Florida Keys dive shop and what the real cost of chasing too many opportunities looks like The Shark Shield saga — why the…

People in this episode

Host: Isaac 'Shrek' Daly

Guest: Ed Martin

Topics covered

• spearfishing
• business wisdom
• carbon fibre fins
• Shark Shield
• dive shop
• manufacturing

Keywords

• spearfishing
• Shark Shield
• carbon fibre fins
• business
• dive shop
• manufacturing
• Florida Keys

Mentioned in this episode

Organizations: Shark Shield, Deep Apnea, Sentinel Ocean Systems

Books & works: KillShot

Places: Florida Keys, Ocala

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• NSP:317 — 5 Spearos Learning to be Freediving Instructors in Amed, Bali | Matty and Liv, Noffs, Rhys (No Viz) and Chiz · June 26, 2026 · 1h 15m
• NSP:316 The 1770 Beginner Spearfishing Retreat Debrief Vol. 2 · May 4, 2026 · 1h 11m

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