Hey Mr Squidy,
You are right and I have chosen Wanda since it is a more convenient fishing spot for me but I am keen to try elsewhere. Now I got the reason of why flathead is not considered a "by-catch", hahaha, thanks for making it crystal clear.
It is a very good point! Actually I used metal lures a couple times only due to the lack of action. Since then I have always been using whole pillies with 2 suicide hooks (3/0) in a attempt to follow fisholb's advice. My leader is about 90cm meter long being 60cm in between the mainline swivel and the upper hook, therefore the sinker runs free throughout this 60cm.
Cheers,
Fernando.