These springs function as intended. I recently bought a 2014 MiM Strat. Not sure if these don't come with the spring or the store lost it. Either way, I disliked the trem arm being either tightened in one spot or loose. A little research led to these and they make the arm easy to maintain in any position. Also, the springs got rid of the wobble in the arm.<br /><br />As others have mentioned, they're easy to over compress, so only tighten as much as needed to get rid of the looseness.
Rating:
[5 of 5 Stars!]