Slide adjustment

[Semper Fi]

I have a 2015 39MB RW.
I have been making small slide adjustments on the dining room side slide.
In the vertical adjustment, what exactly is proper room height. Not sure if slide should be level all the way out or is it normal for slide room outside wall to be a bit lower when fully extended?
Thanks, Randy

[Cheezy1]

Slide room should be slightly lower on the outside wall to cause the water on the roof to run away from the rubbers seals on the unit.

[Semper Fi]

Much thanks Cheesy 1. Being a green first time RV owner, I wanted to make darn sure I wasn’t missing something...