Hello Tim,
From your description you may have received the flat-radius U87/A badges, rather than those with the more pronounced KM8x
I do not recommend trying to reshape the radius of Neumann badges: bending them evenly to sit flush on your housing tube can cause cracks in the aluminum.
Once you have made sure you have the correct ones, here are some tricks for mounting them:
* First, do a trial-fit: carefully line up the badge's nipples with the two corresponding holes in the housing tube and press the badge into place.
* If everything looks nice and flush, put a dab of E6000 adhesive (
http://eclecticproducts.com/products/e6000.html) on the center of the backside of the badge, and press the badge in place. If E6000 is not available, any type of adhesive that will come off without leaving a residue with do.
* Once the adhesive has set, use a round, fine metal file or Dremel tool grinding bit and file off the parts of the nipples that protrude into the housing tube; they are too long on current production badges to clear the amp's protective plastic cover, and will rip it, unless you file them flush with the surface of the housing tube.
Best of luck!
KH