Prawns also worked even a little better than shrimp for me, and I hauled in around 40 over a few hours of fishing in the morning and then at suppertime on Saturday. A friend gave me a few prawn pieces at Dominion and they seemed to get cleaned off the hook a little more often than the shrimp did. Could have been because they were fresher or perhaps more reddish (which makes me think an experiment with food colouring might be in order...).
I'm getting the impression that there are massive shoals of fish that are composed of smaller schools (which is why fishing goes hot and cold over periods of the same day) that move from place to place in sequence. Last week was Cameron's turn, for sure. Sorry you missed it if so, Stroov.
And the spring was essential for detecting those incredibly light hits unless you happen to have a very light rod. The bite wasn't strong at all in the early afternoon but picked up with much firmer hits around supper when you could feel them after the bait.