Having only just learned the technique from Matto about two months ago, I'm completely sold on raising snapper using scraps of pillie. It's very engaging fishing, even when the snapper don't show up immediately. It's still fun watching the hiwihiwi and other reef grotties all lit up and fighting over the scraps.
Yesterday was exceptional, as the snapper were there virtually immediately. The water was quite murky, which might have had an effect.
One downside to be aware of is the bloody gulls, which will swoop in and take every morsel you chuck. I've found that false casting keeps them at a more respectful distance.
Another downside is that your hands get pretty gross from shredding pillies and chucking them in. I use an Alvey belt bucket to hold the pillies, and if I start the day with them frozen, I cut them into thin disks. This means you get a piece of bait that has great vis, but doesn't have a lot of bulk, so won't fill the fish up. However as the day goes on and the pillies get soft, it's easier to just shred them with your hands. This means the pillie blood, oil and guts gets everywhere. I have a rag on my belt too, but this gets pretty foul pretty quick.
So now I'm looking at other options. Am going to give this a try next time: cat food, delivered straight from the tin with a flicking stick of some kind. Maybe just an old dessert spoon. This catfood is sardines in gelatin with a bit of preservative, and is $1.09 a can at the supermarket. Will have to wait a long week till I get to try it. Any thoughts, Craig, Matto or anyone else?