mod_cluster will try to give the same load on each Tomcat so you should get 5 to tomcat1 and 5 to tomcat2.
I was expecting teh same , but it didnt happen with teh sample applciation i wrote. I actually tried from 3 browsers and all requests went to a single tomcat.
I read that the default load balacing stratergy is based on connectors . I need some more infomartion on that. [i was using sticky sessions]
The BusyConnectorLoadMetric generate its load factor from the number of threads that are actively servicing requests.