HTTP forward to Pool not working as expected

when CLIENT_ACCEPTED {
       set default_pool [LB::server pool]
}

when HTTP_REQUEST { 
    if { [active_members $default_pool] < 1 } {        
        pool pool_http_sorry_server
        persist none
       log local0. "Used sorry pool because there were [active_members $default_pool] members in $default_pool"
    } else {        
        pool $default_pool 
         log local0. "Used default pool because there were [active_members $default_pool] members in $default_pool"
    }
}