We have a 2015 3011DS that we got in March and it has a noticeable 1-2" difference with the amount of spacing on the living room slide when it's closed.
There is a bigger gap on the front lower potion of the slide. The top front is pretty snug and the rear top and bottom are both pretty snug.
This seems to explain why the last time I put the slide out the wood trim caught on the mirror hanging brackets and pulled the trim away from the entire left side of the slide and snapped the top trim piece along with pulling the mirror brackets out of the wall. I don't think the slide moved out evenly and because of the angle it was opening it caused damage.
You would think I would have been able to stop the damage before it happened but I was watching the entire slide and not specifically looking at that side of the slide. By the time I realized what was happening the wood trim had pulled away and the mirror bracket had been pulled out.
This is the first I've heard of the slides being able to be out of adjustment and I didn't know it was something to watch for. As a first-time owner I'm learning as I go and feel like I know a lot but there's always something more to know. Had I known to watch this I would have noticed it sooner and not caused the damage that I did.
2015 Forest River Forester 3011 DS - 2007 Dodge Durango Toad