Does anyone else have problems with the front of the SBA3 digging into your chest or back while slung? I just received mine, mounted it, and went for a walk out in the woods and it was immediately noticeable. Not just a small irritation either, it was jammed into my skin pretty hard. I've searched around and can't find anyone with this problem.

The brace was extended close to all the way out, I've found that I like that much better than NTCH.
I can't imagine my sling setup being much different than everyone else. It's mounted on the right side of the brace, around the back and up to about midway up the handguard (right behind my hand). I feel like that's a pretty typical setup and it's what I run on all my AR's.