Seaguar grand max fx is by far my favorite tippet material. It was first introduced to me by a friend for stillwater trout fishing, then i started using it for river fishing trout & steelhead. I have not broke off a single fish yet this season, and the tippet has to be the most supple and easy to work with fluorocarbon on the market. the diameter for each rating is great and the visibility of the tippet is second to none. if you need a good tippet that has everything give this stuff a try,you wont regret it.