I'm assuming going to 4# test will require a lot longer fight and also not sure my current set up is suited. Using a spinning reel and 12'6" convergence rod. Someday I will have a murky set up and a clear set up.
depends on how soft the rod tip is. the drag on the reel can alway be reduced. No need to carry two rods with you for different setups, just get the leader material spools, its 50yrds of whatever weight you want to run, i always carry 4.4, 6.8, 8.8 and 10lb with me at all times, i usually use the 10lb for salmon only, other than that, its just retie at your micro swivel, if you're using one, or retie on to your main line