In Turok 2, your crosshairs move to the default position if you move forward or backward, even with the lock spring option turned off, unless you are holding the analog in a direction the whole time. Some gamers may find this annoying, but there is a way to fix it.

Remember the warning in the front of every instruction booklet? "Do not hold the analog while turning the system on!" Well, if you hold "down" just a little bit on the analog while turning the system on, it will be tricked into thinking that that is the default analog position. So when you play the game and stand still, you will look up very very slowly, but the lock spring will be "fixed," and will never spring back to default again.