Big Bad: 5/6 is fine for trout, that's what I use since I like lakes and rivers. Some of the bigger rivers need a heavier weight to hit the sweet spot. I have also found it helpful in assisting me in keeping the big ones out of the weeds. Now, TM tends to use his noodle 2 weight and swears by it. He's had a little problem hooking up lately, but that will change. Use what you got & enjoy. There are some good packages out there through Cabela's and others. Won't set you back a fortune. Seems to me that the big additional expense is in the spare spools & line for the different types of fishing.

If you've got it, use it!