Confirming LTM node persistence between pools?

when HTTP_REQUEST {
  set IP_ADDR [session lookup uie [IP::client_addr]]
   Look for the 'POST' method - a client is posting data back to the portal
  if { [HTTP::method] equals "POST" } {
    if {$IP_ADDR == ""} {
       Set the LTM pool to the 'SSL' enabled pool
      pool SPS_SSL_pool
    } else {
      pool SPS_SSL_pool $IP_ADDR 443
    } 
  }
  else {
     Not a 'POST'...
     Disable the LTM-to-server SSL profile (so LTM talks in the clear to IIS)
    SSL::disable serverside
     Select the HTTP only pool
    if {$IP_ADDR == ""} {
      pool SPS_HTTP_pool
    } else {
      pool SPS_HTTP_pool $IP_ADDR 80
    }
  }
}
when LB_SELECTED {
  session add uie [IP::client_addr] [LB::server addr] 1200
}