Quote from earlier link:
"Being soft fleshed and having soft mouths, small hooks are required and drag sets should be minimal, but they can also go like freight trains when hooked."
I didn't pay attention to the "softness" of the mouth, and i am not sure what they class as a small hook, but i caught it on a 5/0 with half a pilchard.
Although this quote does match:
so named because of the slime that covers their bodies
The thing was slimy as hell....