B&W Companion Slider slide lock

I have a Companion Slider, and love it. I do have what may be a small issue, but I am looking to other owners for your experience. When I open the handle to let it slide, it slides okay, but then doesn't always lock in when it reaches the end as it should. It's a little tight when I try to move it manually, and doesn't move as easily as it does in the video. Is/was yours like that as well? Is it a break in issue? It's only been slid about 10 times total, and I know they're precisely built.
Thanks
Ct..