i guess my mentality has always been to use the lightest test that will do the job. and still believe that.
and then i see freshwater bass fishermen using 65# power pro to catch 2-8# bass
. blows me away! the explanation isn't the fish in their case, it's pulling them out of heavy cover. the heavy line lets them cast places i would consider suicidal for 10-12# test and just plain hoss in the fish, sticks, lily pads, grass and anything else the fish wraps around.