While I enjoy gun porn as much as anyone. I am not as partial to Glock Gen4.
With that in mind, I humbly offer my own sentiment:
Not knocking Glock but I grew up as a SIG kid with my first P225 and by God, I shall remain such.
Good luck to UCR I suppose. We haven't exactly seen eye to eye in the past, but wish you well regardless. I literally know nothing of FAN so I can't comment much on that end.