Experts are recommending long rods for nymph fishing. I'm considering a 10 foot long rod for my nymph fishing, probably 4 weight, mostly to make roll casting nymph rigs easier. Anyone have a recommendation? My favorite rod at this point is my 4 weight TFO Lefty Kreh Pro II, 9 feet long. Lighter rods can't roll cast worth beans, and heavier rods are too much for small trout.
Depends more on where than what you're doing IMO. I fish very few larger rivers (except the Potomac a couple times a year) and the Orvis Helios 4 weight 9 foot is my go to rod for virtually all my trout fishing. I'd stick with what you have.