I heard when you run 10mm spacers on the front you run the risk of loosing a wheel. Something about there not being enough "meat" on the centering ring of the spacer. I think there has been a few threads on this already.
Just run 12 or 15mm spacers. Also make sure you run new longer wheel bolts.
See post
#5
Everything You Ever Wanted To Know About Spacers
http://www.m3post.com/forums/showthread.php?t=336209