Another trick with these is to remove the treble hook and tie a 2 to 3 inch dropper line. At the end of the dropper line tie a hook. Tip the single hook with live bait.
I some times tie a small glow bead on the hook line for a little extra attraction. I use year round but was designed for primarily ice fishing. This rig can be super deadly on large yellow perch. I use in sizes from 1/10 oz to 1/2 oz. Smaller the swedish pimple the smaller hook I use as a dropper.
I have caught the following species on them walleye , crappie , perch and channel catfish. One good perch technique with the pimples is to let it hit bottom and stir it up a bit. This creates a little cloud of dust on the bottom. Perch if nearby usually swim over to investigate. Somedays they like a live minnow on the dropper hook other days just a piece of minnow. When they really get picky go to a smaller pimple and tip with waxworm or maggot.
Some of the magazine writers refer to this as a " search " lure. Personally I think they should have called it the " producer ".
Garminarmin gpsmap 1040 xs networked with Garmin gpsmap 1242 xsv , Panoptix PS 30 and PS 31. Livescope LVS 32
Ice rig Echomap Ultra 106SV with LVS 12 and GT10-IF