Spasor
No point in trying to fight (educate) Davy, he's in a 'flattie frame' of mind.
I could have been intrigued why circle hooks don't work for big skate in deep water, when they should be more effective. I could suggest that Davy is mounting the bait incorrectly. Is the circle hook joined to the trace so it can rotate freely.
But I wont, so there! Petulent pause.
As I am directly involved with the 2000+ UK shark Tagging Programme (includes tope as per the original question) and seen how circle hooks benefit tag and release with minimal damage/discomfort to the fish, I was surprised with Davy's interjection based on, what I consider to be, a narrow minded, elitist view point, that missed the original question in the first place, just to try and prove that he's the fastest gun in the west. So he holds his rod all day does he? For one or two big fish a day? Really?
All kinds of anglers from all kinds of disciplines put their rods down some time or other and the crafty fishes take advantage of these moral lapses and try to nick the bait. If a 'J' hook is used - gut hooked! If a circle is used - in the scissors!
But then again, I'm not going to tell Davy this it might upset him, and I wouldn't like that.
Circles are not a passing fad, they are a real contribution to fish welfare, but don't tell Davy.
Me fight, unlikely, I know nothing guvnor.
DCB