proper shutter speed for fast motion...
 

Hello,

I normally shoot at 1080 (60i). Should I use a faster shutter speed to shoot a ski race?

Any suggestions regarding camera setting would be greatly appreciated.

Only if you want blur-free frame grabs of fast action. But be aware that a fast shutter may result in color shifting under certain types of lighting should you happen to be shooting under lights.

Fast shutter, even at 60i, can give a hint of strobe-like artifact to motion in some folks eyes. Do a test if you can to see which gives you the image you want.