Note Avoid cheap imitations. I like to motor around at night, looking for lights over the water. Squid are attracted to lights by the baitfish which hang around them. Cast your jig towards the light and work it back slowly. Squid can become very aggressive when feeding and are often in good numbers when located.
Daylight jigging in deep water with the aid of a depth sounder can also be very productive.
Drifting along deep channels with a group of anglers who know what they are doing, has produced catches in the hundreds. As mentioned before, salinity levels are very important. The saltier and clearer the water, the better your chances. If in doubt, a simple taste test of the water can save a lot of wasted effort and time. The trick is to pre-plan your trip so that it is over a period of the month that coincides with favourable tides and moon phases.