Picking a fly line matters just as much as picking the rod — a mismatched line makes even a good rod cast poorly. Here’s how to choose.
Match the Line Weight to Your Rod
Every fly rod is rated for a specific line weight (printed near the handle) — a 5-weight rod is designed to load properly with a 5-weight line. Straying outside that match, even by one line weight, changes how the rod casts. Start by matching exactly; experienced casters sometimes go half a size up to help load a rod at short range, but that’s a refinement, not a starting point.
Floating, Sinking, or Sink-Tip
- Floating lines are the most versatile and the right choice for a first line — they handle dry flies, and with a weighted fly or indicator, shallow nymphing too.
- Sink-tip lines sink just the front section, getting a fly down into deeper runs or pools while keeping most of the line manageable on the surface.
- Full sinking lines sink the entire line, used for getting streamers or nymphs deep in stillwaters or heavy current.
For general Australian trout fishing, a floating line covers the vast majority of situations and should be your first purchase.
Weight-Forward vs Double Taper
Weight-forward (WF) lines have more mass concentrated in the first 30ft or so, making them easier to cast further and load the rod with less line out — the standard choice for most anglers. Double taper (DT) lines are more delicate for close presentations and can be reversed when one end wears out, but they’re less common today outside specialist use.
Don’t Skimp on Line Quality
A fly line does more work in the cast than the rod does — a cheap, poorly finished line will make an expensive rod feel mediocre. It’s one of the areas worth spending a bit more, since a good line lasts for years with basic care (rinse after saltwater use, keep off hot dashboards, clean occasionally).
Shop the Range
FlyFinz carries a full range of fly lines including the complete Cortland lineup, in floating, sinking and specialty tapers for freshwater and saltwater. Not sure which is right for your rod and your water? Ask Jim — he’ll match a line to what you’re actually planning to fish.