hi mark,
there are many ways that you could fish plastics, jig head weight will depend on the methods you want/need to apply, but i would say go with the lightest you can get away with.
remember the further up and across current the less weight you need as the jig/plastic will be dead drifting, so all you need do is keep up with the slack line by either lifting your rod or slowly reeling in(theres an article keith white wrote on this in his blog) to compensate for it, then lower the rod as the jig starts to go down current of you, set the weight up so the jig just bumps bottom and lifts of again without you having to lift the jig up to move it all the time, this method will work with straight and paddle tailbaits, also try down current methods by casting quartering the current and allowing the jig to swing around in an arc on a tight line, you'll need slightly more weight to bump bottom this way, but it's a great method and catches fish, just play around with both on retrieves,colours,lenght etc,the fish will tell you how they want it.
kev
there are many ways that you could fish plastics, jig head weight will depend on the methods you want/need to apply, but i would say go with the lightest you can get away with.
remember the further up and across current the less weight you need as the jig/plastic will be dead drifting, so all you need do is keep up with the slack line by either lifting your rod or slowly reeling in(theres an article keith white wrote on this in his blog) to compensate for it, then lower the rod as the jig starts to go down current of you, set the weight up so the jig just bumps bottom and lifts of again without you having to lift the jig up to move it all the time, this method will work with straight and paddle tailbaits, also try down current methods by casting quartering the current and allowing the jig to swing around in an arc on a tight line, you'll need slightly more weight to bump bottom this way, but it's a great method and catches fish, just play around with both on retrieves,colours,lenght etc,the fish will tell you how they want it.
kev