Since I've been told that applying nail polish should help tighten loose ball joints, is their any specific brand of nail polish I should be using? Also, should I apply the polish in the socket, or on the ball joint itself? And should I let the polish dry before I attach the arm back to the joint? Thanks, and wish me luck with the joint tightening and whatnot! Hopefully Sunstreaker will be able to hold his gun after this.