2wt line on a 3wt rod?
I have a 2wt rod rigged with 2WF line. The rod is 6 1/2 ft long. I like the light rod, but the short length presents challenges on wider streams. For bigger water, I recently bought an 8 1/2 ft 3wt rod, but no reel. If I use the reel rigged with the 2WF line on the 3wt rod, what considerations am I going to have to take into account?
I think if I loaded a light rod with heavier line, the rod would nominally become more sluggish. But I don't really understand what would happen if I go the other way (lighter line on a heavier rod).
Thanks for any hints you have.