But nowadays there are so many brands of fluoro available at a wide variety of price ranges, it’s harder to know exactly what you’re buying. Fluorocarbon has far less stretch than monofilament, which means even the slightest tap will transmit to the rod much faster. According to Whelan, however, a byproduct of the rising popularity of the material was an explosion of brands producing their own fluorocarbon. The difference between them and Seaguar, he says, is that Seaguar makes every element of their line. This trick was figured out decades ago when it wasn’t uncommon to be bamboozled online into buying knock-off fluorocarbon featuring major-label branding.