The epiphone I have did not have a sound post when I got it. Is that a problem?... it was owned by a church play who bought it new in the 40's. And an article online said these basses came with a sound post patch. And I have no clue what that is... the reason I ask is I'm getting a lot of feedback off this bass when it's amped. Also I get rattle from my end pin when I play my d string. Advice on that would also be appreciated.