Quoted from GamerRick:
This is exactly it thank you! You have to plunge so it goes through the first gate on the back of the house but does not go all the way around. It needs to stop behind the house. If it does that it seems to give you the shit every time. So it’s simply plunging strength. Since learning this key to the shot from this simple but yet brilliant post, I made the back door shot twice in my first game attempting this. On the next game made it twice again.
I've done that... I've had the ball stay at the top of the house for a few seconds then it rolls slowly down to the left orbit.
But, I haven't tried since the latest code update... I'll give it a try... Hope the skill shot is worth it.