Bedlam,

Your vise is adjustable so that any size or style of hook can be used and still have the rotation be centered around the hook shank.

You'll need to figure out where that adjustment is on your vise (should be in the instructions). You'll need to adjust the vise to fit the particular hook you are using at the time.

That's normal, even for those of us with DynaKing vises.

Nice vise, by the way. I modified one a year or so back for friend so that it would have a 'reel' like crank handle on it...

Buddy