[Viva Los Expos]

One thing to keep in mind is that the AI that decides what the arbitration award should be is the same AI that runs the other teams in your league (unless you're playing online). So I think you're unlikely to get hurt by going to arbitration with a 4th/5th starter: you should be able to trade and/or dispose of him on waivers. The exception, I guess, would be if you're up against the salary cap and that guy's arb award could keep you from signing a free agent you want.