Tope. Help.

Out last thursday for first trip of the year, and three of us had four Tope up to about 30Lbs, one certainly 30Lbs.

The area we were in seemed to be full of them as we had only a few frozen mackeral joeys, we were actually fishing for Ray!! I want to make Rubby Dubbie for my next trip and wonder what is the correct mixture or is it just bran, mackeral and what else.?

Thanks in advance
Tom

We use mackerel, bran and oil. Cod liver from the vetianry supplies or
normal cooking oil if the dubby is going to soak overnight. We use our dubby
for sharking where the surface trail is important not sure about tope.