Wacky- often weightless, but if the wind is up, that
can make it difficult to get the bait down due to waves
and wind bowing your line, etc. In that case, I go with
a weighted wacky jig, or I'll put a bull-shot on the line
somewhere to pull it down.
T-Rig- again, wind often dictates to me whether weight
or no weight. T-rig does pull thru vegetation better, but
wacky is effective there, as well. Sometimes I change to
a T-Rig just to give the fish a different look. If I want to
fish deep, gotta have a weight.