Thank heaps guys for your words of wisdom and knowledge on the uswe of plastics.
I will be taking all that was said on board and try all the techniques mentioned. To be honest I am lucky I asked because I did'nt have a clue on how to use them.
Now on the better note, I went out again on Thursday Arvo to the same location using green prawns. I was initially using a mustad size 1 bait holder hook casting out, letting it settle for a while and then tightining the line. I would feel bites however no hook up. This went on for abour 45 minutes. I decided to change to plan b which was off goes the size 1 on comes the size 4 bait holder hook, only this time using smaller pieces of prawn. Out goes the cast, tighten the line and what do you know I'm hooked. I thought it was a flatty the way my line tightened however once retrieved I see it is a whiting and a good one for East Hills on the georges river, measuring up to 31cm.