With all jerkbaits, sinking, suspending, floating, any of it, I vary my presentation. That's a great aspect of them, sometimes the fish don't want any jerks at all, sometimes they want all jerks and no pauses, and sometimes in between.
Floating ones, I like to give a couple of jerks and the pause length depends on how deep I'm fishing and the cover/weeds/etc around. If I can get away with it I like a short pause, just enough to allow the bait to back up a little, I get lots of hits on the back up motion (meaning..on the pause the bait will start to float up towards the surface, which actually gives the appearance of a fish backing up as it goes more shallow). I was just watching a show last weekend where they talked about this exact thing and how bass can't resist it sometimes. I agree and have used it with good effectiveness.
I love the clear water out here, you can watch you bait and play around with the action. For me, jerkbaits are all about presenting an injured fish, so I'll play with them a bit until I feel like I have an action that resembles something hurt.