Squid are an interesting fish !
Well, only from my experience, Squid are attracted to light.
Most folk fishig for Squid from a boat have a light on, the old lantern seemed to work best. But, from a jetty / pier, the ones with lights should work.
Using a squid jig, either hook type that you load a pillie on or the cloth covered imitation prawn type ( with some tuna oil on it ) have done the trick so far.
Months to catch them ? good question.
I know the Wellington Point Jetty works well for them, but can't place a month on them ! bugga.
Maybe someone else has a better idea.
Phill ???