I've been throwing a Mattlures 6" perch swimbait.  The last few times out I've felt some "bumps" but nothing I could get hooked up on.  Maybe the fish just aren't getting the hook in their mouth, or maybe it is pike, muskie or walleye swiping at the tail (I didn't see any tooth marks).  Anybody else have a "bump" but no hook-up problem?  How did you fix it?

2 things I plan to try are:

1.  Use flouro or mono -- I've been using straight braid.  Love the sensitivity, but I'm thinking the lack of stretch may be preventing the bait from being "sucked" in by the vacuum-like action of a feeding fish.

2.  I may add a stinger hook.

You don't necessarily need to change your line and you DEFINITELY do not want to add a stinger hook (that will just get you hung up). Swimbaits get bumped a lot based on the posts I've seen and my limited experience fishing them. Just keep after it, these baits are not for numbers.

It might just be small fish slashing at the bait - its surprising the amount of small fish that attack these swimbaits almost their own size.  You COULD add a trap/stinger despite what RW says if you want to see whats doing it, but like he says, increases the chances of you hanging up a lot.  

I'm no Fish Chris but generally when I get bumped I throw back right away then let the spot cool down for a few minutes and either throw the same bait or a senko/tube. Two bumps and the fish has hit you and dropped you. It's best to set once you feel any kind of bump since the bigger fish inhale the bait.

your right in switching over to mono....the stretch will buy you some patience and also be less visible...unless your ripping that thing through weeds drop the braid. As for the stinger well you could add one but with that small of a bait the fish may get the hook too deep. Try a little scent if they aren't commiting.

hope this helps.