In-Site DFS Server Costs

Hello,

I am wondering if it is possible to manually set the cost for DFS servers that are in the same site.  I will give an example of my situation.

Site A:   Server1, Server2

Site B:  Server3

Is it possible to set the cost of Server1 to be lower than Server2 for users in Site A?  Or are all servers in the same site always the same cost, and therefore can only be prioritized through the namespace referral order override?

Also what is the default cost for an in-site server?

Thanks