1. Is Silver out-station based, or hub based for the pilots?
2. On their site, they say pilots have day trips. Is that also at IAD?
3. What's the upgrade time presently at IAD?
4. Is their upgrade only seniority based, or is it like TSA which requires 3500/3000 hours in addition to seniority?

Thanks to any present Silver pilots who can answer these questions!