Quoted from BLACK_ROSE:I disabled the Shooter lane up Post , I got sick of hear-n it Pop up .. I don't need it anyway
Everyone probably knows this, but there are essentially three skill shots in Tron:
1. Plunge lightly to score the random bonus with the arcade scoop
2. Plunge normally to hit the up-post which will flow back to the pop bumpers
3. Hold the left flipper and plunge normally (this will disable the up-post) which will begin the ramp bonuses if you can hit the third flipper at the right time
Your game, so obviously you can do whatever you like, but the up-post is there for a reason.