Question about frozen anchovies

Noob here. Sorry if this is a silly question. I was trolling a frozen sardine with a octo hook behind the eye and a treble stinger in the tail and I noticed the mouth on the sardine would open up and change the action of the bait. I can see how using a krippled anchovy rig might help but wasn’t sure. Is this a problem y’all have or am I just being dumb? Solutions? Thanks

front hook up through nose. or use KA

Sliding snell setup, or use an elastic magic thread,  dental rubber band.