Berley yes in fact a lot of the moki pro's swear by it, particularly mussel and crab based ones. Flashers beads etc aren't necessary, in fact some wont use them at all. Night is apparently best but Ive seen them caught dusk dawn and avo too. The fact there keen on mussells cray crab and even prawn in the dark but wont touch fish baits suggest they are attracted to those scents. I think the most important tip is patience