I know this is an old chestnut, but-
I am Trying to reduce/ eliminate pushback distance for GA project.
Methods- Reducing wingspan in Aircraft .cfg file has no effect (Ive seen this referred to a number of times)
- - Reducing wingspan AND reducing Parking spot radius - has no effect.
Adding more taxipath in to parking spot and adding nodes closeby (as suggested in a post), has no effect.
The only thing I havent tried is the "plumbing" method - If this DOES work in eliminating pushback then I will give it a whirl!

Any advice would be appreciated -on what actually works.
Thank you
The answer here is to put a blue node very close to the center of the parking spot on the connecting link. The distance between the parking spot center and the blue node defines the length of the pushback.

From mobile hence short