G'day.
I've been hitting the lakes the last few days also. A lot of areas are proving quiet, with others just shutting down altogether. I've had varied success at the front of the caravan park in north Narrabeen using prawns but the fish are far apart there regardless. I'd almost say not worth the chill unless a few smaller flatties and bream are you cuppa. You never know, though!
Also;
Soft plastics in the lake at this time of year will prove a mostly futile ambition as the fish tend to take them territorially in summer when they are more active, whereas in the cold a solid & definitive feed is really the more productive way to go them. Squid, prawns etc are your better bet.
Yesterday I had a great deal of smiles at 40 baskets beach right at the end of the jetty, and will be heading there tomorrow with my mrs and little brother (weather permitting).
See how you go anyway mate. I'd be inclined to give the lakes a rain check at the moment, most will say the same.