People used to steal the 8 ball at a bar I used to play at... when you racked the balls, the 8 ball looked like the peak of a mountain in the middle of the rack.   Well, not that bad, but you could notice the difference.   The cue ball was also larger, not sure if it was from wear or just because the coin op table used a mud ball.
Anyways... I would use shot speed and follow for position, don't try to draw the ball if you can use follow and a rail or two to get where you need to be.  Shame that the equipment takes certain shots out of your arsenal, but stuff happens.  
