[QUOTE='68 Coronet R/T;n75931]Do they really make clean up that much easier? I would think once you pull the bag and plug out the remaining contents would still make a mess.[/QUOTE]
When you're done spraying, turn the gun upside down and pull the trigger (air dis-connected of course) to allow the material from the tip back to drain back into the bag. With the gun still upside down, take the cup lid off and remove the bag. All the unused material will still be in the sealed bag with absolutely none in the cup. Clean up is a breeze.