Factors affecting lure action
1. Bib designSimilar to 'depth', the action of a crankbait lure is mainly determined by the shape, size and angle of attack of the plastic bib.
Other factors do, however, come into play.
2. Body shape & buoyancyLures with a bent body often deliver a wider action than straight bodied (minnow) type lures. Floating lures usually have a more vibrant action because their buoyancy 'fights against' the diving action of the bib.
And that's a key point. The action of a lure is caused by opposing forces that struggle against one another - neither dominating. If one of the forces does dominate, action is lost.
3. HardwareHooks, split rings and snap swivels place extra load on the lure's ability to deliver an action. Our lures are designed to work best with certain sizes of hardware. It's a metter of balance. Exceeding these sizes significantly will degrade performance or turn the lure into a stone!
4. SpeedA lure will vibrate more quickly as retrieve speed is increased. That's logical. If the speed exceeds the limits of the esign, it will swim erratically or 'blow out' (break through the water surface and barrel roll). All crankbaits have an upper speed limit. We find that lures that tow from the bib - rather than the nose - are generally more tolerant of high speeds.
Quicker is not always better. Some lures attract fish when worked at extremely slow speeds. We believe it's important that lures work at very slow speeds so they get 'straight into gear' once you start retrieving. When fishing heavy cover, you want the lure to start working while it's in the strike zone - not half way back to you!
5. Line classHeavy line classes restrict lure action because of the resistance they have to the oscillating lateral movement generated by the bib. The effect is more pronounced on small lures which have less ability to over-power the resistance of the line.
Here's a way to understand this phenomenon.
Imagine you are holding a thin rope and shaking it to create serpentine waves running along its length. Now imagine you have hold of a ship's mooring rope, trying to make those same waves.
Now you understand how a small lure feels when it's attached to a heavy line :-)