Used UG for years but now I just use it for leader. You have to be able to track your line through the water and now that I am in my 50's, I just can't see UG any more.It was hard enough to see it when I was young. I have now switched over to Gamakatsu Flo. yellow. Great stuff and I have caught a lot of fish with it. And those who say Flo yellow scares fish are wrong. I have landed 4 steelhead with this line since mid Nov. Since switching over I have not notice any decline in the number of fish that I catch each year.