IIS and Tomcat workers groups

[Miguel Gonzalez]

Dear all,
 
  We currently have an IIS 6 fronting several Tomcat 6 containers with a list 
of workers for each redirection we want to forward from IIS to each tomcat. 
 
  We are thinking of migrating to IIS 7.5 and Tomcat 7. Also we would like that 
two of the nodes share the same redirection and so we can balance the load to 
two servers instead of having one server.   Is it possible that two of the 
nodes are balanced in a group while the other nodes are stand-alone?
 
  Many thanks
 
  Miguel