...... They do get worn out and don't work as well when they are rusted IMO......
I find that the first thing that goes is the hook barb wrt rust. You will hook up allot but many never make it in the boat. Really s&cks when they drop off right at the boat on a day when bait is scarce.
I like the rigs with a size six or larger hook. Check rigs often for damage, and replace often. I use a one or two oz pyramid sinker when trolling to give the rig a wiggle. Also works good for jigging as they hit on the quick drop.