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Live for bass and pickerel. I have heard dead bait is good for Northerns, unfornutely there is only one pike lake in eastern PA.
There's definitely more then one lake in eastern pa with good number of pike in it hookedup. I tested the live or dead theory last season using 8 tip-ups with 4 live and 4 dead minnows in a row with the tip ups going live, dead, live, dead etc The tip-ups with the live minnies pounded fish while the ones with the dead caught 2 fish. after a few hours I switched the tip-ups around to make sure it just wasn't a lucky hole or something and the live still out fished the dead by a ton. Therefore, I like live for everything unless your trying to catch catfish through the ice then a big stinky shiner will work.
I prefer to use half dead or half alive minnows,I step on them just enought to wound them,I like it when the scales slowly fall off and float aroung the bait,by busting the bait up a bit will put more scent into the water than a bait that is just hooked