It is ok to use cut up bullheads in MN.
I’ve never say never..because when I do…those dang fish don’t listen.
I haven’t had very good luck with channel cats on cut bullheads. Sucker, shad and mooneye have worked out better for me.
I started using Sonny’s Super Sticky stink bait last year and had very good sucess with it on Pool 4. I started using it in August when the temps were in the 80’s.
Took a non believer out and skunked him 5 to 0, with my largest being about 4 lbs. He was using cut sucker.
I have no experiance with Dynamite…wonder if we have any Cajuns on line?