Yeah, I know what the technique behind the motion sensing is, but I've thought it could be possible to use the data from the spatial sensing to determine how the wiimote is being held before/during a swing and the start of use for the accelometer. For example, if i hold the Wiimote pointing slightly to the right, the character would keep the racket facing right too, and when I swing the Wiimote, the spatial sensing would pick up how the angle and distance has changed and the accelometer&things would keep track of the other important aspects of the movement. Couldn't it be done 1:1?

It doesn't even have to be that complicated. All the Wii-mote needs is a single point of initial position and velocity and it can (in theory) calculate all future positions from that, since it can sense acceleration. So all you have to do is hold the remote in some reference position (pointed down in a golf stance or held pointing straight outward for example) and press the 'A' button to set the position and then the game would know where the remote is in the future. In reality since it has trouble sensing small accelerations, then making slow movements would probably throw it all off again. What I believe is done right now in Wii golf and baseball and bowling for example, is it senses the orientation of the remote and assumes it must be in the position corresponding to that orientation in the natural motion. This works because there is only a single, simple motion, and so a particular orientation is generally unique within that motion--it's also why the game has to ask if you're left or right-handed I believe. This tactic might be able to be applied to 1:1 swordfighting but it'd be more difficult and probably inaccurate since the sword could take on the same orientation from multiple positions and velocities (ie: different sword swipes) Hopefully in the future they're able to hammer out the details of this thing, maybe trick the accelerometer into working better somehow.

IIRC Super Swing uses the 'press A to set reference position' technique (I think at the top of the backswing) Of course this is also how WarioWare works.

I've noticed there is an implementation of manual backswing in Tiger Woods so that means they didn't want or didn't have time to use it fully. Those of you who have the game try this: after pressing B tilt just a little the wiimote up, you see a slight movement and if you start swinging slowly, the animation will do it like you do, and if you stop the animation wll stop. you can stop halfway the backswing and then downswing it for a 50% shot. in face of the reviews complaining about it and considering its already 'there' i guess tiger 08 will have «our» backswing.