Both my traditional MTH 408E's, my Lionel Classics 2-400E and MTH P-2 400E Blue Comet, and my P-2 Brute have NO traction tires, and that is the way they will stay as long as they are mine!
Traction tires are an accident waiting to happen and are generally unnecessary.
My Brute pulls its FOUR Showroom consist with NO traction issues!