I have not had a problem keeping the contents of my bag dry , unless I get snow on there when I have it open, or forget to zip it up when I am riding (did that once).
Same as ^^^ I've had mine on my nytro for 5 years and it has never gotten wet. Being a hard bag on place moisture would get in is on the top but it has never happened to me yet.
After having other multiple brands of bags I would never look at anything else ! These set ups are top notch, I have never had any issues with getting any (snowdust) or wet conditions in my bag. I had the small tunnel bag which is great but I pack all kinds of junk so I went to the larger low profile bag. I have lost multiple gas cans until I went with the mountain addiction set up, I think you could pry hook a snobungie up and not jerk the can off...lol but this is just my opinion
Bone dry for me too. It's my favorite setup for bag and/or fuel. My pro this year came with the large Barandt bag and I gave it a whirl for one ride since it's so big it could probably double as a sleeping bag......back to the mountain addiction setup now.