Thanks Jason. I think I nailed down the caching problem. I am not 100% sure but it appears it was a mix of browser settings and "persistent" policy settings for the LB. They were both related to cookies issues. Now it appears that when a server is down (or taken offline from the pool) now the browser gets redirected to the "surviving" one.
I am still wondering about being able to refresh the browser and circle between the two web servers within that session (I can swear I have seen this happening in other demos) EVEN THOUGH the ap idea was excellent and it may give a much better real-life tasting of what happens when you have thousands of connections! You can then monitor the statistics of the node to show how the connections have been balanced! Thanks!
Massimo.
Nimbostratus