Sorry guys , you seem to think I was talking about FLY fishing. Fast lure is what we have . Fly is olive dun, sedge. When I catch salmon on the collie dog , it is on an escaping lure , which the salmon MUST snap before is escapes. A dropper must be fishing too fast if it is fishing fast enough.
Don't fish it all day. You will be knackered and disturb the water.
Cover new fish, or fish in known lies for a couple of mins then move on , or sit out and watch. You will be surprised what you learn watching the water for an hour.
I've had more success with my 11' than the big rods, possibly because the retrieve on the wee rod is more jumpy.