Tricky Crappies

[Crappies]

Hey everybody just wondering a few things from you crappie fisherman. I've been fishing a lake here in North Dakota on a regular basis this winter for crappies. Only managed to get 2 so far that were about a pound each. Anyways I was wondering if any of you had some suggestion to catch more. I can see them down there on the vexilar but just don't get many to bite. I've been fishing in 16 feet of water and usually catch some perch before sunset and right about sunset they quit and the crappies move in. The presentation i've been using so far is a forage minnow tipped with a minnow. I'm wondering if anyone would have some advice to get these picky buggers to bite. They usally will follow the jig up a ways and just look at it, not eat it. Any help would be appreciated, Thanks!
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