Good question that I unfortunately can't answer. I played on a number of 9 foot professionals in golden oak Dymondwood and the rails stood up really well to high use. Even though it's just a home table, I didn't want to have to ask my friends to take off their watches so as to prevent...
I finally bit the bullet and ordered a full 9 foot Diamond Professional package in rosewood Dymalux from Heath Manning at manningcues.com.
I was recently speaking with Heath and learned that Diamond has now added a Dymalux option in charcoal, which looks really nice.
I've attached a picture...