I would get a bully bite me off only once in every 10 trips on the Coomera at night, so that gives you an idea how often you might need to try.
I have heard of others getting hit more regularly on live mullet, but I dont know which section. Ive seen em down near Sanc Cove, but I dont target em. I reckon it must be shark biting clean thru 40lb trace.
cheers
Andrew