If you don't have much load, the load balancing won't be equal because of the way slbd functions. The first connection every 5 seconds goes to one server, so if you only have 1 connection or less every 5 seconds, you'll never hit the other servers. As your load increases, it becomes balanced, so slbd's quirk isn't really a problem, it balances when you actually have enough load to need load balancing. And failover will remove that server from the pool so you have redundancy. Once you have a decent amount of load (20 or more connections per 5 seconds) the balancing equals out. I don't think that's detailed in the wiki, it is in the load balancing chapter of the book. http://pfsense.org/book