When I head out for a day on the river I take a 5wt and an 8wt. I can catch anything on the river with the 5wt, but use the 8wt for big flies or windy days or in the spots where I need to pull bigger fish out of heavy cover quick.
Even though I use the 8wt a lot, I seem to catch my bigger fish on the 5wt.
A few weeks ago I did take out the 4wt and the 8wt. You can cover alot of ground with those two. Biggest bass of the day (or would have been) hit a little wooly I was using to bream fish on the 4wt.
So I guess I'm an odd even guy.