Dave, first of all I want to thank you for the excellent review you've made on the GR10M board I've sent you.
You did point some valid aspects, some of which I can't implement due to the nature of the project and the enclosure used of it, which is an Hammond 1455D601. I guess where won't be space for holes (nor need to) or BNC connectors. I know the SMB connectors are not very durable, but the other option would be to go for SMA, which is even worse IMHO. However, the voltage rating idea printed on the silkscreen is a nice feature that I've already implemented on my next project, and all thanks to you.
I'm worried about the state of your board, since F1 seems chipped to me. I could swear the board seemed to be fine when I sent it to you. Since I never wished to sent you something that is broken (or got broken during transportation), I can send you a replacement polyfuse. Please, could you confirm if F1 is damaged? Thanks in advance.