Scientific Anglers Frequency Trout GPFrequency Trout GP Fly Line Utilizing the tapered belly from Infinity, Trout GP has a slightly longer front and rear taper and size heavy weight scheme. Compared to Infinity, Trout GP leans more finesse but is still a capable general purpose trout line. The choice for anglers who dont consistently fish heavy rigs like large streamers or bulky indicators. Braided multifilament core Specifications Line Weight Head Length Total Length Head Weight Grain