I've added an option in multibit.properties to connect to a specific list of peers:
(From the configuration.txt document)
+ Connect to specific peers
If you want to connect to specific peers set the following
property:
peers=<comma separated list of peers to connect to>
The list of peers can be specified using domain names (
www.myNode.com)
or IP addresses. Example:
peers=173.242.119.177, 176.9.42.247, 217.79.19.226, 98.216.173.54
(The older property singleNodeConnection is still honoured but is
now deprecated. Use 'peers' instead).
Note: ONLY these peers will be used for connections.