Just bought some fireline crystal. Looks good and can't wait to try it. Had good luck with 6# transition last year on ice. Low stretch and good visibility above water. Strong too! 8# was too stiff and "coily" for my preference.
For most panfish, three or four pound test Trilene Micro Ice is just right.* Three pound test for bluegills and sunfish, four pound for perch and crappies will usually be good.* Go with 8/3 or 10/4 FireLine Micro Ice for LARGER fish.* These lines are specially formulated for cold weather fishing.