Diana's Choice of current underlevers, what is missing?

[jonnyone]

Yes you could right although the areas where Diana could have a advantage over the PS is a more robust cocking linkage and lever and much more suitable for FAC and for the US and could be even better looking if they tried

For those reasons I'd certainly like to see them bring out a gun of this ilk.
I think if they spent some time getting the research and testing done they could come out with a winner, but it needs to be good- very good indeed.