Trim dead Vanda roots?

[tucker85]

I've been growing orchids for many years but I'm new to Vandas. In fact I bought my first one last month. The Vandas I bought have lots of good healthy roots that turn green when watered. But there are some obviously dead brown roots on the plants. Do any of you trim off dead brown roots or do you just leave the roots alone? Is there any down side to trimming them?