No I don't get nervous on ice or in snow, but there are a few major differences.

1. Slowing down in turns so I don't have to lean.
Not too much of a problem here, but it could be "depressing" if I had long twisted downhills to negociate slowly...

2. Accelerating and slowing slowly.

3. Getting good tires also help, especially in hard packed snow.

Regards,