To All, I am finally at the point where I will be assembling my C4XLD yagi. My tower is a Hy-Gain HG54-HD. While pop rivets are supplied, I have heard that some users have resorted to using stainless screws, nuts, and lockwashers. Which method is best and why? Thanks, in advance, for your input. Semper Fi, Tommy - K6YE DX IS