Tom/BRD: Request Your Advice....Bubbles.....Outwards....or....Inwards

[modsl55amg]

Tom,

I am seeing pictures of member's installs with the bubbles Inwards. I am aware of the reason for doing so, but what is your Expert recommendation? Whatever your advice may be, is it the same for all cars, or does the model/style of car and/or the exact position of the sensors on a car dictate if bubbles should be Outwards or Inwards?

Thanks