Have fished Hargraves a lot over last few months and have pulled in plenty of salmon. Fully agree with above post from "Fezza" on the Paternoster rig with a sliding snell hooks (much easier to put hooks in pillie and can adjust sliding hook to size of pille) I also wrap some really fine elastic "string" around pillie, really helps in keeping bait on hooks longer. Fine elastic can be bought from shops like Spotlight, bout $3 spool.
More than half the salmon I caught were on a surf popper. I just have a second short trace with a surf popper on about 20cm above above pillie bait trace. If your pillie bait is chewed off early at least the surf popper may pick up a fish.
One problem with surf poppers though, the hooks in them are pretty much rubbish and had several hooks snap when winding in a fish, big 60-70cm salmon tho.
Stick with it you will hook up, and chat to some of the locals they're a friendly lot, most don't mind passing on advice
kiwipea