Skaap-tjop
I've tried jigs before but never really had any pos results, hence I don't use them anymore, I found (Johanvc's introduction) an all in one bait, (spinner, jig, jerk, etc bait) called the "Chatterbait", these things really work, just make sure that you get the one from the company with the same name. Have tried other makes, Booyah, but no reaction, Chatterbait, well caught fish where nothing else worked for many a trip...
There's another post on this with a link to the chatterbait website, have a look, well worth it.
As far as time of year goes, It's winter or very close to that in any case so fishing has gone down a tad to very much so slow, extremely slow (deadstick DA JIG slow) is the way to go, cast it leave it (for about three minutes) and then only twitch it once or twice and leave it again for some time, Loams had another piece of advice called the smoke technique if I'm not mistaken, Cast, light a smoke, take three drags, twitch twice, take another four drags, twitch twice and so forth.
Colour wise, well, the water colour and depth the fish are lying around talking to their buds should indicate the colours that you should use.... There's been some posts on that around as well.
LGF