you can supplement the brine with vita-chem soaked food, drop the live like you would the frozen. It's all about association with fish, every once in awhile drop something frozen, mysis, rod's along with the brine. It would also help if it is at the same time ie. first in the morning, and roughly the same place. If I may suggest doing it in QT, it's less competitive there. But it can be done in DT but it takes longer with more effort if the other fish are nabbing association food before he sees it. There are also studies of tapping on the top before delivery than the fish associate the tap with food and grab it before they know what it is. It's very similar to Pavlov.