I know this is risky, but...

[Scrapper1]

Nobody has mentioned this, maybe because it's too obvious. But in order to have GT, there must be a try for goal. For BI, it doesn't matter how the ball gets on the rim or in the cylinder. Could be a pass or a deflection. But for GT, it must be a try.

Goaltending:

1. Must be a try.
2. Must be on the way down.
3. Must be completley outside the cylinder.
4. Must be completely above the rim.
5. Must have a chance to go in.

Basket Interference:

1. Can't touch the ball if it's in the cylinder.
2. Can't touch the basket or ball if it's on or in the basket.
3. Can't touch the ball (even outside the cylinder) after reaching through the basket.
4. If rim is moved, it can't contact the ball before returning to its original position.