@ Willo
vary your retrieve .... lol, I hate it when people say that !
seriously though, most hits have been on a fairly fast retrieve with a whipping actions.
So I cast, let it drop, then whip up rod tip (from about 20 degrees to about 70 degrees), as I drop rod I reel in the slack, repeat the process.
When the water is very very cold I will slow down a little
I have watched many people do the slow twitch and slow retrieve like they see on TV and Youtube, but once they see us hooking into fish they very quickly adapt the fast whip method.
Remember, this is purely for leeries.
Gurnard, cob and grunter works on the slow twitch (or whip) method, they are bottom feeders