How, exactly, do you cut the gills? Angle? Where? Pretty quick death I assume?

I use a stiff fillet knife and sever the spine on game fish, assuming it ends any possible suffering and bleeds 'em out. Slicing the spine is the hardest part so if you were a fish, how'd you rather go?

I've bagged more often since the white headed walleye trip. I needed to deep six two carcasses on that trip since the gulls weren't cooperating at one campsite. Cleaning fish wherever, away from any campsites is always a plus.