Start with Diawl Bach (12-14) — on the bob / top dropper. Rainbows respond to more active retrieves — try short strips between pauses. If that does not produce, switch depth or speed before changing the pattern entirely.

If the daddy is being refused, drop to a hopper or a single foam beetle and cover rising fish individually.

Evening tends to be the best period in summer — stay late if you can for a sedge or spinner fall.

Good ripple suits both bank and boat. Bank: work inflows, dam walls, and points. Boat: broadside drift covering wind lanes.