Ridiculously painful to catch under when there are "good" fish to be caught! I never caught one under the ice but I hooked into a smaller one last spring on 6 lb line when I was going for crappies. I wanted to cut my line, but it was kinda fun too. Those things are beasts! Stronger than common carp for sure. A friend of mine got spooled out last year on the ice. A local told him it was prolly a giant flathead, but I think it might have been one of those things. :lol:That fish is ridiculous.