Today I finally finished Encore.
(Why in the hell I wasn't shooting it with the camera..:s )
After 7 months trying I did it. Had a lot of luck of course, but clearly the strategy is to go for add a balls when you are with only one ball. And only go for the objectives when you have more than one ball in play.
SPOILER: There's no spoiler lol. You see no animation and hear no sound after the final shot. The machine just shuts down and you start again.
Next step: Get it on camera hehehehe