Big Cats?

[bassmasta]

hey everyone, i go to a little lake almost every other day. I recently found out after many experiments, shrimp works best there. Problem is, i can't seem to pull out any bigguns'. I'm using one whole piece of raw shrimp and a good sized treble hook (freelining). Is there some rig I could use to pull out bigger cats, or is it just up to chance?

thanks, Bassmasta
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