How to use iRules to switch between pools?

• Are you terminating SSL on the F5 for VS:443 ?
• What ports are the pools configured to listen ?
• Can you execute a curl command post the output for the relevant uri ?

If the iRule is attached only to VS:443 and you want the traffic to go to the pool for VS:80, you can try to redirect but then again, it depends on other configurations like the one on the server:

when HTTP_REQUEST { 
if { [HTTP::uri] contains "/svc/CCEUserMonitor.asp" } {
HTTP::respond 301 Location "http://virtual server/svc/cceUserMonitor.asp"
}
}