All my crappie gear is light or ultralight, spooled with 6 pound Suffix High Visibility yellow mono. Never saw a need to go heavier. Ive been thinking of dropping to 4 pound but I do pull in the occassional bass or cat with these rigs, not that 4 pound and properly playing the fish doesnt work. All i do is float fish, cast jigs, and dapple along the shore/brush though.

Personally to me, for whatever its worth or not, anything medium light or heavier is bass gear.