I too have heard lots of good reports on the Bait Busters, but have yet to give them a go. I'm a fan of brined herring, but bring along some backup artillery when the fishing is so good that we run out of bait. Will give the Bait Buster a try this year.
One of the back-up lures I have really been impressed with is the Apex. I don't like the way it is rigged right out of the package, though. The hook needs to trail further back to get those short strikers. You can either use beads or a short section of narrow drinking straw or coffee stirrer.
Unlike a Bait Buster, the Apex doesn't have a good way to hold scent. I have had good success by saving the innards of my bait as I plug-cut them, and just letting them sit in the brine. When I run out of bait, I still have a bunch of smelly morsels to use. I rig my Apex with a snelled salmon leader and loop a strip of innards in the "egg loop".... VOILA. Yes it really does work!