two rocks squiding?

 Hi lads, two rocks is now my local ramp and recently Ive been having a go for squid with the duo jigs. Im used to targeting them in 2-3 m around cockburn but most of two rocks area is a lot deeper.  Ive had a few cracks without any luck, and lost a few jigs to some pretty big snook in the area.

Ive been having a go in the 12m zone close in. Seems to be plenty weed on the sounder. 

Anyone got any advice in this area? 

Cheers

Grant.