premount angles, vertically to the backside of the sign, and screw into the posts.
will work with/without the extra 2x4's on the back.
Add some silicone behind the angles also.
this would help a lot. And if you find your self having to screw through the sign face, just use some gold screws, shouldn't look too bad
Colorado I guess you have never removed any sighs that had silicone used as an adhesive? What do you do just wraps?????????
Colorado you are the one with the bad attitude! You started the same thing on the post about installing a sign with posts!