Reels are a handy place to store line, so I store mine there. I handline as necessary to come tight to a fish, but once there I reel up the handlined slack. While water drag on fly line usually makes for a secure hook hold in the hinge of the fish's jaw, it doesn't always do so. I prefer a tight line and a couple positive jerks to let the fish know we're connected and also to sink the hook home in case it isn't already there.

Sg