I just put new Helicore mediums on my 59 Kay. All of them sound great except the A, which sounds like one of those spring wall protectors when you pull it back and let it go. The string isn’t hitting anything and I play a high action, like 3/8”. I thought about moving the post around, moving the bridge, and just playing for a while and see if it breaks in. I was hoping someone else has a solution or knows what might be the cause. Thank you in advance.