Irule to LB traffic based on least connections

It's not just AOL but any ISP that uses a mega proxy or caches a DNS response longer than the configured TTL. The iRule that is deployed is using session persistance to the pool that it was assigned based on the load balance scheme we have configured. If a new connection is made and does not have a cookie it is then sent to the default pool so if by chance the connection is coming from an ISP that has cached a specific DNS response for a pool the connection is sent to that pool. I know this is normal behavior and out of our control, the real issue is the application not keeping state information in the database. So until the delvelopers come up with a solution to their problem we have been asked to try and fix it using the load balancers. I guess the bottom line question is; Does the GTM/LTM store information about least connections somewhere and if it does can an iRule be used to make a decision based on this information? If it is possible what would the impact be on the LTM's if we have almost every connection go through the load balance process essentialy a second time.