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I use 2 and 3# trilene micro ice for panfish.not many walleye lakes around here,so i have no walleye setups.
Last year I used Stroft GTM line. Super thin line diameter and very strong. Ordered direct from Germany in spool sizes of 200 and 300 meters. Felt like thinner line diameter made a big difference on negative bite days, especially when I went down to .07mm (.002in/1.7 lbs) line. My go-to line on most days was 2.5lb, which was still very thin (.09mm/.0035 in) but strong enough to land bigger gills and crappies.
3 or 4 pound fluoro. Haven't decided on a brand I like any better than another. Tried braid and felt like I needed to take off 20 ft every few times I went out due to being impatient with it freezing up.