Damien,
We were trolling a mixture of lures, didn't really go there with mackerel trolling in mind. We had a few X-Raps until they got belted too much and wouldn't swim anymore. Then we started trolling Jai stickbaits and FCL Labo Squid Pencils to good effect. Lost a few from having wire bitten through or bitten above the wire unfortunately, but it's all part of the fun.