I don't want to buy them all to find out which is most suited to the majority of my fishing, so maybe you can help me decide on the one best suited overall line for both rods. I have a Z-Axis 590-4 and Winston BIIX 690-4. Used 99% nymphing and 99% river fishing for large trout, but the dries come out when the noses do. Pretty set on RIO (have had good luck, like dealing with them when I have issues). Here's the question: Have the 5wt Grand, like it, but have nothing to compare it to. Never owned a Gold, told I should be using it. Rio Grand or Rio Gold? (don't like the nymph line) 5wt or 6wt?