Oh by the way, another trick to hit delicately biting roach in either river or still water is by the following.
In a river you fish upstream.
Use a fairly heavy in line feeder in the normal way and a short hooklink, say 3 inches.
When your feeder hits bottom, tighten into it thereby putting a fair bend in your quiver tip until the force of the tip WILL NOT QUITE CAUSE THE FEEDER TO MOVE.
Any bite from a fish will cause the feeder to dislodge and shoot forward, thereby pricking the fish. The fish will generally bolt, hooking itself. A bite is often signalled by the tip jumping back and then the next second whipping around as the fish is hooked. This works well at short range.
Oooohh we are giving some secrets away arn't we....
)