Anytime I use a pencil popper I use it more in a walk the dog way. As slow as I can before it sits back. Even pencils with just tail weight. The slower you go you will noticed that they will start to blow up on it rather then swipe at a pencil that is being retrieved too fast.
I assume a spook with a single siwash would be fine but the belly hook seems to keel it some.
Nobody calls me Lebowski. You got the wrong guy. I'm the Dude, man.
Bluefish love fast, you want splash not zig zag. All the "pencils" I made for bluefish (and years ago I made/lost dozens) only had tail hooks. Think of the Gibbs Skipper and you've got what you want. Short, fat, tail weighted, one hook.