The proper way make use of a touchpad?

I've been a trackpoint user more or less out of necessity, thanks to the Thinkpads' terrible touchpad and outstanding trackpoint.

Recently got a MBA. The responsiveness, good gestures (and lack of a trackpoint) made the touchpad worth using.

Except I have no idea how to hold my hands and arms while using it. Here are what I've tried and did not like:

1. Laptop on the edge of the desk; hand sloped downward below the edge of the desk. This led to wrist fatigue very quickly.

2. Arm suspended above the desk. Wrist at 180. Arm fatigue and wrist fatigue developed very quickly.

3. Arm suspended above the desk. Wrist at smaller than 180. Arm fatigue and wrist fatigue developed very quickly.

4. Laptop in the middle of the desk. Wrist resting on the desk. The most comfortable position I've found, but it's still quite uncomfortable compared to hands on the palmrest.

It feels like there's nothing as good as the fingers on the home row and hands on the palmrest position that the trackpoint system allows, even when not accounting for the convenience of being able to access keyboard shortcuts easily (the OSX gestures are robust enough that this is possibly a matter of my getting used to it).

Tips from experienced touchpad users?

 

I've been using touchpads for awhile now, in addition to trackpoints. Whenever I'm using my own laptops, its always trqckpoint, though I usually end up using other people's laptops often (troubleshooting and the like). My suggestion? Buy a mouse, since I've yet to really find a comfortable position either compared to using a trackpoint.