basically i did it for purpose. i also noticed that you used to this setup and forget it does not match with physical as you feel more immersed.
if you have 1 to 1 mapping then you will not be able to aim when you see one hand through other. for example you will not be able to play Longbow game in The Lab cause for aiming one hand will cover other and it will not track.
secondly you will not be able to pull longbow’s chord cause leap motion tracking will stop once hand is too close to chick where it would naturally be place.
but i wanted to avoid too many settings.
one more little secret is that I also virtually streach fov 😉
when I played this then after 30 seconds I feel immersed with how it works and i feel like it is natural. if you want i can make function to disable it all.