benfishes

Hi all, New to these forums but in desperate need of any advice to prevent me from going crazy. Anyways, so I have this jetty I go to in Sydney's Port Hacking River system and the surrounding water holds really big mullet and lots of them. I know this because they frequently jump out of the water at late afternoon right by my line and torment me. They seem to be feeding near the rocks right by the break wall at high tide where there is plenty of bait fish around. I am targeting them on light tackle. I'm using two rods. One is a 3-5kg class line rod, the other is a 2-4kg class line rod. I've got 6lb mono line (I think) on one and 8lb on the other. I'm using 2 size 6 long shank hooks with split shot weights and a float about 40cm above these two hooks on both rods. Using bread as bait on both rolled into tiny balls. I should also mention I'm burleying up the place with bread frequently. So far, after a number of times fishing at the location, I've only caught under-sized bream, when I really want to reel in one of these 30-50cm mullets! Any tips or advice would be much appreciated! Kind regards, Ben