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# **How to Choose the Cortland 444 Steady Sink ST7S Fly Line – 40 Feet, 3.5 to 4.0 IPS**
When it comes to sinking fly lines, the **Cortland 444 Steady Sink ST7S** stands out as a top-tier choice for anglers targeting deep-water species. Whether you’re pursuing trout, bass, or saltwater gamefish, selecting the right sinking line is crucial for maximizing your success. In this guide, we’ll break down the key features of the **Cortland 444 ST7S**, its ideal applications, and how to choose the best model for your needs.
## **Understanding the Cortland 444 Steady Sink ST7S Fly Line**
The **Cortland 444 Steady Sink ST7S** is a **high-density, full-sinking fly line** designed for **precise depth control** and **consistent performance**. With a sink rate of **3.5 to 4.0 inches per second (IPS)**, this line excels in **deep-water scenarios**, allowing you to reach fish holding at **20+ feet** with ease.
### **Key Features:**
✔ **40-foot sinking head** – Ensures rapid descent without excessive line memory.
✔ **Uniform sink rate (3.5–4.0 IPS)** – Provides predictable depth control for nymphing and streamer fishing.
✔ **Low-stretch core** – Enhances sensitivity for detecting subtle strikes.
✔ **Durable coating** – Resists abrasion and extends line life.
✔ **Compatibility** – Works well with **fast-action rods (6–9 weight)** for optimal turnover.
## **When Should You Use the ST7S?**
This line is ideal for:
✅ **Deep lake fishing** – Perfect for targeting trout holding near the bottom.
✅ **Streamer fishing** – Helps maintain depth while stripping flies.
✅ **Saltwater applications** – Effective for striped bass, redfish, and other species in deep channels.
## **How to Choose the Right Model**
1. **Match Your Rod Weight** – The ST7S is available in multiple line weights. Pair it with a **fast-action rod (6–9wt)** for best performance.
2. **Consider Water Depth** – If fishing **20+ feet deep**, the **ST7S (3.5–4.0 IPS)** is ideal. For shallower water, a slower sink rate may be better.
3. **Check Fly Size & Weight** – Heavier flies (e.g., articulated streamers) pair well with this line for better turnover.
## **Final Thoughts**
The **Cortland 444 Steady Sink ST7S** is a **high-performance sinking line** that excels in deep-water scenarios. Its **consistent sink rate, durability, and sensitivity** make it a favorite among competitive and recreational anglers alike.
For anglers looking to upgrade their sinking line setup, the **ST7S is a proven choice**. Pair it with a quality rod from **KyleBooker’s premium lineup** for the ultimate deep-water fly fishing experience.
**Have you tried the Cortland 444 ST7S? Share your experience in the comments!**
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