I like the round frabill tip-ups, but my most used set up is a baitcaster in a rod holder with the freespool open and a pink shoelace tied on the line by the rod tip… when the pink shoelace is gone it’s like a flag going up but you get to do an awesome hookset and fight the fish.
I started using that system because we wanted to use decoy sized suckers under tip ups and it wasn’t working very well.
I make my own QSR’s with 100 lb fluorocarbon and #2 hooks. I’d stay away from circle hooks when targeting BIG toothy critters with big baits. QSR’s are great, just wait until the fish is moving away from you and hammer them. 6 hook points vs 1 hook point… I think I’ll put my trust in 6.