BONUS: Castability Unleashed: Mark Sedotti's Journey with the Sedotti Slammer

Episode Overview

In this episode of The Butcher Shop, host Marvin Cash sits down with Mark Sedotti, inventor of the Sedotti Slammer and one of the pioneers of weight-balanced streamer design, to trace nearly 35 years of big-fly development for striped bass and bluefish. Sedotti explains why a lead keel and the right amount of absorbed water can make an oversized streamer cast further and more accurately than a small one, overturning decades of conventional wisdom that heavy flies are harder to throw.

Working from western Long Island Sound, where he first tied the Slammer to imitate adult menhaden up to 15 inches long, Sedotti walks through the evolution of his high-and-low bucktail tying method, the construction of a rectangular lead keel to stop wide-profile flies from rolling, and the concept of weight balancing that ties it all together. He also details how the Slammer found its way to Michigan's Manistee River in the early 1990s, where guide Russ Maddin nicknamed it the Screaming Jesus and helped ignite the modern big-streamer trout movement.

The conversation covers rod and line selection for casting giant flies, including Sedotti's signature Sayonara sling casting technique, along with retrieve mechanics, leader setups, and where to source materials and commercially tied Slammers. Anglers chasing striped bass, bluefish or trophy trout with oversized streamers will come away with a working framework for why some big flies cast beautifully and others simply won't turn over.

Key Takeaways

• How to weight balance a streamer so it casts smoothly regardless of its size, rather than dragging through the air
• Why adding water-absorbing materials like bucktail can improve a big fly's castability instead of hurting it
• How to build a rectangular lead keel from lead wire to stop a wide-profile fly from rolling in the water
• When to size a streamer to match adult versus immature baitfish, since selective stripers and bluefish may refuse flies shorter than the natural forage
• How the Sayonara sling casting technique adds effective rod length and line speed for longer distance with a single-handed rod
• Why a long leader of eight to nine feet improves fly action and strike rates when streamer fishing for trout

Techniques & Gear Covered

Sedotti's core concept is weight balancing: adding just enough weight to a streamer to counteract wind resistance and drag during the cast, which he discovered by building a rectangular lead keel out of 0.030-0.035 lead wire to prevent wide-profile flies from rolling. His high-and-low bucktail tying method, refined with input from Bob Popovics on achieving a three-dimensional bunker profile, remains consistent across pattern sizes from three and a half to over 20 inches, with synthetic yak hair, bucktail and feather substitutes used as natural saddle hackle and schlappen became harder to source. For casting, he favors a fast-action 11-weight rod paired with either integrated sinking lines, shooting heads or a floating line for shallow presentations, and retrieves with long, fast strips followed by a pause where most strikes occur.

Locations & Species

Sedotti developed the Slammer in western Long Island Sound around Greenwich, Port Chester, and Rye, New York, targeting striped bass and bluefish keyed in on schools of menhaden, or bunker, ranging from three and a half to over 15 inches depending on the season. He later carried medium-sized versions of the fly to Michigan's Manistee River, where it proved effective on trout and helped spark the region's big-streamer trout culture, as well as to Montana's Beaverhead River for trout. Today, he fishes deep structure at Montauk and Southwest Ledge on Block Island for large striped bass, working the fly 35 to 45 feet down on sinking lines.

FAQ / Key Questions AnsweredWhat is weight balancing in streamer fly design, and why does it matter for castability?

Weight balancing means adding enough weight to a fly to counteract the wind resistance created by its materials as it moves through the air during a cast. Mark Sedotti found that a properly weight-balanced fly, regardless of size, will false cast smoothly with a normal loop, while an unbalanced fly either drags or develops an uncontrollable loop.

How do you build a keel to stop a wide-profile streamer from rolling?

Sedotti wraps half-inch strips of lead wire in layers of five, stacking three levels to form a rectangular, raft-like keel along the underside of the hook shank. The exact method matters less than achieving the correct total weight for that specific fly to keep it weight balanced.

Why can waterlogged flies actually cast better than dry ones?

A dry fly with the same amount of bulky material is more wind resistant and harder to turn over, while a wet fly collapses and cuts through the air more easily. Sedotti found that the added weight from absorbed water often helps counteract that wind resistance, provided the fly isn't carrying so much water and weight that it becomes overloaded.

What rod and line setup works best for casting large weight-balanced streamers?

Sedotti prefers a fast-action 11-weight rod for big saltwater patterns, paired with either an integrated sinking line, a shooting head or a floating line depending on depth and structure. His Sayonara sling casting technique adds effective rod length and increases tip speed for longer casts with a single-handed rod.

How did the Sedotti Slammer influence Michigan's big-streamer trout fishing?

In the early 1990s, Sedotti brought a medium-sized Slammer to Michigan's Manistee River, where guide Russ Maddin was stunned by how aggressively trout attacked it and nicknamed it the Screaming Jesus. That introduction is widely credited with helping launch the modern big-streamer trout movement centered around Michigan's guiding community.

Sponsors

Thanks to TroutRoutes for sponsoring this episode. Use ARTFLY20 to get 20% off of your TroutRoutes Pro membership.

Related Content

BONUS: Tying the Circus Peanut: Streamer Secrets and Fishing Strategies with Russ Maddin

BONUS: Mastering the Beast: A Deep Dive into Bob Popovics' Legendary Fly with Captain Ben Whalley

BONUS: A Deep Dive into the Swingin' D: Techniques and Tips with Mike Schultz

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Helpful Episode Chapters

0:00:00 Introduction

0:02:33 Designing the Original Slammer

0:06:43 Unlocking Castability

0:15:33 Perfecting the Profile

0:19:17 Synthetic Evolution

0:32:53 Michigan Streamer Breakthrough

0:47:15 Casting Big Flies Well

0:53:42 Lines and Leaders

0:56:35 Fishing the Retrieve

1:06:26 Final Thoughts on Weight Balance