The great thing about SAI for a new hire is seniority doesn't matter for bidding, in the sense that all the schedules are basically the same. You get the contractually minimum days off, and they own you for the rest of the month. The company has never felt an obligation to honor the schedule you bid, if their interests were better served otherwise. And sometimes, in the not so distant past, schedulers would muck up schedules just to have the appearance of being busy for their bosses. Not so much on the DHL contract, and not as much in years past, but there is nothing in the contract to prevent them form doing so should they decide it would be fun.

If you live in CVG and fly the 737, obviously things will suck far less than for those who would have to commute.

On the other hand, your schedule will never, ever get any better.
That's one of the magic things about Southern, things never change that much. There is churn, pilots and managers come and go, new directions are proposed, new policies implemented or ignored, a steady stream of new types are added and removed from the fleet, but Southern Air today looks and acts a lot like Southern Air from 5, 10 or 15 years ago. The current contract is essentially unmodified from the first one signed by the Southern Air Crew Group, before the Teamsters were even on property. With the Worldwide Holding company cooking the books I'm sure when the current contract negotiations get underway there won't be a dime for Southern's pilot group, but McHugh and Soaper will continue to get massive bonuses, just like they did when they drove the company through bankruptcy.