Re: Need different rod for streamers?
First off, there's no need to go lighter than 3x or longer than 4' of leader for sunk line work.
You shouldn't need a different rod to fish a 8' sinking leader on a floating line with a weighted bugger. You just need to cast it differently.
With 20' of floating line in addition to the sinking stuff, do a roll cast to put it all on top. Then do one back cast and allow the line to shoot on the forward cast to its destination. You will probably also need to slow the casting stroke WAY down. It will feel like more of a lob than a normal fly cast.