Hi,
You can use other load balancers other than F5, but CA only validates F5 and can't help with other configuration. So you'll have to figure it out by yourself.
Take note, you need to have source address persistence enabled for the pools. This ensures that the clients won't be switched to the other pool members during their session. If this happens users will receive either a "server has been restarted" or "session not found" message. SDM sessions do not carry over between servers.
Hopefully this helps you out.