Been using hi- vis lines for all my fishing for 25 years now. Lines range from 2 pound test to 10 lb. test mono. Most of my fishing is in a very clear highland lake for spotted bass and crappie. Also fish the Tennessee River for smallmouth, white bass, crappie and sauger, and the coast for speckled trout, flounder and redfish. With various friends fishing with me over the years, we have had a few days with over a hundred spotted bass, several days with over a hundred white bass and several days with over a hundred speckled trout. I don't believe high vis line has hurt our results. Bass can see several pieces of wire on an AL rig, but still bite the swimbaits.