SITA's automatic plans or ARB ( Automatic Route Build ) as it is officially known WILL generate SRS compliant plans by the end of next week. If you're using the SITA FBS system, ARB v5 Phase 2 goes live on the 6th July, so it should make your summer schedules a lot less time consuming to manage.
"Tweaking" as you call it will probably always be required for any CFP output, but if it wasn't you guy's would be out of a job wouldn't you?
Computerised Flight Planing systems are a tool for Dispatcher to use, not a replacement. As I have been known to say many times, "You can't teach experience" and a computer will never be able to take over the functions of Ops Controller or Dispatcher.
Whooaahh!!!