I've heard that if You have the C.F. frame, that it is important not to have the antenna touch the frame. They also need to be exposed as much as possible.

I used liquid electricians tape and ran a bead with a toothpick around the rear triangular opening of the C.F. frame with it and have one antenna sticking out straight on both sides. Looks sharp.

You can get it at Home Depot in a few colors.