If it had a bit more flexible feet or some sort of spring loaded ends to it it might be easier to get set.  As is, once you hit bulkhead its pretty much done.  the feet don't give at all.  The ratchet clicks are a bit too far apart.  So its pretty tight or damagingly tight never good n' tight.  Part of the problem is my bed liner I suppose.  Its not a "sticky" surface. Like rubber on paint would be.  But like I said, the feet are too hard to really seat them onto something well either.  IT'll do for my purposes.  Just keep groceries from sliding forward.  Don't know what else it would be capable of.  YYMV based on surface you're pushing against.