Leon
The method you describe is known a the washing line, and should be used with a floating/midge tip or intermediate line when the fish are up un the water; not the best thing in cold winter condiations but you never know, a prolonged mild spell will bring the fish up as there will be sparse midge hatches.
I would go along with most of what Steve says but different patterns can do differing things for example you could fish a lure or a flashy wet on the point to act as an attractor to your buzzers or you could fish an emerger patern on the top dropper and fish this on or just under the surface. If I am fishing a team of buzzers I tend to fish a heavy superglue or epoxy buzzer or bloodworm pattern on the point, a realistic pattern on the middle dropper and an emerging or skinny buzzer on the top dropper and change colours to find out what the fish want. It is also worth remembering that if takes dry up a change of colour rather than a change of pattern may also be succesful.
When do you fancy a trip out then??