Have finally gotten tired of the cheap fly line that came with my beginner set. Both me and my fishing partner are looking at new line. (to much memory) Mine is worse than his. Been looking at the cortland line. I've read the reviews on the forum and am a little confused on which line would be best for me. I fish mainly for bluegill with it. The rod is a 8 ft 5-6wt. I understand the different titles for the line wf, dt, & level. The problem is all the varieties in one class of line. Take the cortland 555 class there's 5 different ones on cabelas web site that are in my weight range. How do I know which one is right for me?