If my new rod says," 5/6 line weight". Thats OK, but, what about the leader and tippet?? These are in like 2X, 4X, 8X etc. Don't understand what these XX mean. Is there a chart somewhere that converts it to pounds/oz.? Also, what XX works with 5/6 ;line weight. I'm totally confused. I've read examples of which to use etc, but i'd like to have a choice for the different fishing i'll be doing. I've fly fished before, but now that I want to get back to it, so many things have changed. Thanks for any help. I Really need it.