Originally Posted by
Dave Anderson NH
Zach raise an important point. Eye dominance makes a huge difference. Like Zach, I'm gauche but right eye dominant.
To test for eye dominance hold a pencil vertically in front of you and in front of an object. Look at it with both eyes. Now close your left eye. If the object doesn't move to one side you are right eye dominant. Now try closing the right eye. The object should move to the right if you are right eye dominant. Obvious the reverse is also true if you are left eye dominant.
The ideal situation is that you would have the same dominant eye as your dominant hand. Those of us who don't have to take a bit more care when making cuts requiring critical accuracy.