Aircraft design - gear neutral position

[italia458]

Hi,

I'm curious as to why some gear bogies are designed to be tilted on landing so the rear wheels touch first (787) and some so that all wheels touch at the same time (A350).

Does anyone know what goes into deciding this?

[Machinbird]

Here is some prior discussion on the subject:
http://www.pprune.org/tech-log/524549-mlg-orientation.html