Mozz

On mine the bait will also be more a solid red and kings often seem to hang slightly above and to one side of the bait.

I always get the good feeling when I see the more broken sign starting to build off the back of the bait..

When I get a good group of kings they will be more separated and will be orange and show good arches or slashes.

All that said I have caught them over structure in clean water with nothing much showing on the sounder from time to time.
I wonder how far they come for a jig?

The best sign I ever saw was in 90m and it came up like mount Fuji almost all the way!
We pulled big snaps and kings on 300grm jigs and huge fish kept following them up over and over until we were basically stuffed.