Know the minimum I can get by with about big water nymphin' but for a streamer/sink tip type of line? Teeny T 130 or T200. The stuff is slick shoots well and gets down to the fish fast JUst haul it in till the head is inside your guides, roll cast to aerialize it, one false cast and shoot the line with a single haul. Make sure you have a real good backin' knot because you will be seeing it.
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