More'n one way to skin a cat or catch a fish! Unless I'm in a combat zone I'll switch around when I know fish are there. My vest can weigh anywhere from 8 to 12 lbs because I carry jigs-n-floats, spinners, spoons, corkies-n-yarn, flies too. I also have all the rods-n-reels if not with me on the bank, at least in the vehicle and I don't mind walking back to get what I need, cause that's better than leaving it at home. Don't ever catch fish at home!
Now I will admit, I usually stick with one set-up if I really feel like catching a fish that way, but if I'm the only one not gettin' fish, you bet...I switch! Besides, how you ever goin' to learn anything new, if you never do anything different? I've been lucky enough to catch Steelies on all but the fly so far, and I'm going to get 'em on that too one day. Confidence in your gear is very important, no doubt, but knowing you can get 'em more than one way builds your confidence.