There are times when 30 lb line won't make a difference. I have had
fish clamp down on the bait so hard that a cross their eyes hookset
still doesn't move the bait in their mouth. They will finally tire of
it and open their mouth and swim free.

I have also had days where they grabbed a crankbait with the sharpest
VMC hooks in the world. As I play them to the boat, they will open
their mouth and swim right off.

Frustrating, you bet. A few hours later or several fish later and it
can change. Funny when you compare notes with 7 other guys at a team
event and they have all experienced the same thing on different tackle.

Carlos