When you’re fishing unfamiliar watcher–switching up tactics to find out what works–you probably don’t want to keep switching lines. So you end up just sticking with the floater. This means that you need a way to get your streamers down in the water column without the aid of a sinking tip.
In this video, Joe Rotter from Red’s Fly Shop demonstrates how he uses the hump mend and the give-and-go to get a good streamer presentation with a floating the line. The hump mend breaks the current’s grip on your line, allowing the fly to sink without being under tension. All you do is move your rod tip quickly upward about two feet and then back down. Once the fly begins to swing in the current, use a jigging motion and then the give-and-go, in which you feed bits of slack into your line as the fly swings.