testing the load balancing

If have two nodes running piranha, and an apache server.
I have performed a failover test - that was successful.
 
How can I test the load balancing ? I always get the same node (node A) when
trying to access the web pages.
I tried round robin, weighted round robin, and weighted least-connections.
I am using rup.
 
and another question:
is there another way of telling piranha the load on my servers ? for example
: by number of active processes ?
 
Thanks,
Nir