I only fished Ponta Do Ouro,but the same will work at Mamoli.I fished between 16-25m trying to pass all the reefs. I headed north and drifted back to Ponta. I started out fishing with cuda dusters and pilchards and headed to a reef. Got some livebait and drifted around.There are some Cuta around.I didn't downrig my bait as the reef fish take it everytime.
Once you get to a reef throw some poppers or sticks bait,got picked up by some big kingies.