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Try leaving the jig on the bottom. Just make the jig quiver on the bottom. Don't lift it more than half an inch.. I have good results doing this when they are not very aggressive.
Interesting idea. Had the same thing happen today. Wish I saw this and tried it. Will give it a shot -- and a tube jig -- next time
I would also not be afraid to down size either.. A 2.5" tube jig is a Laker killer.