This is ridiculous, plenty of games implement a drag coefficient, and so can cont. The major source of inconsistency in cont physics is the unpredictability WHETHER a player is thrusting or not combined with latency. Drag (as long as you dont allow it to vary per-player, which would be stupid) is completely predictable; there's no case (rather, you shouldn't allow there to be a case) where someone is not affected by drag. If you added drag to cont, you'd have to be careful of a few things. First, cont probably internally makes some guesses about whether another player is thrusting based on pkt history. Those guesses would have to be reevaluated in the context of how players would behave if there were drag in a zone. Further, the total acceleration would be drag (always negative), plus thrust. If you start thrusting opposite the direction of your current velocity, the total negative acceleration will be higher than if it were just thrust. Since higher potential acceleration can cause greater inconsistency, zones would have to be aware of it and set 'tasteful' limits. As long as you didn't set the drag coefficient to Ragu's Thick and Hearty, this wouldn't be a problem. -numpf