Blackberry - How to implement ListField Smooth Scrolling?

Overview
I'm using a listfield class to display a set of information vertically. Each row of that listfield takes up 2/5th's of the screen height.

As such, when scrolling to the next item (especially when displaying an item partially obscured by the constraints of the screen height), the whole scroll/focus action is very jumpy.

I would like to fix this jumpiness by implementing smooth scrolling between scroll/focus actions. Is this possible with the ListField class?

Example
Below is a screenshot displaying the issue at hand.

_{(source: perkmobile.com)}

Once the user scrolls down to ListFieldTHREE row, this row is "scrolled" into view in a very jumpy manner, no smooth scrolling. I know making the row height smaller will mitigate this issue, but I don't wan to go that way.

Main Question
How do I do smooth scrolling in a ListField?

Assuming you want the behavior that the user scrolls down 1 'click' of the trackball, and the next item is then highlighted but instead of an immediate scroll jump you get a smooth scroll to make the new item visible (like in Google's Gmail app for BlackBerry), you'll have to roll your own component.

The basic idea is to subclass VerticalFieldManager, then on a scroll (key off the moveFocus method) you have a separate Thread update a vertical position variable, and invalidate the manager multiple times.

The thread is necessary because if you think about it you're driving an animation off of a user event - the smooth scroll is really an animation on the BlackBerry, as it lasts longer than the event that triggered it.

I've been a bit vague on details, and this isn't a really easy thing to do, so hopefully this helps a bit.