Which saddle for London to Paris

I can't seem to get the angle quite right on my Rolls, if I have it on straight it its slightly uncomfortable just below my balls. I heard it helped if you tip it slightly forward, but when I do this I find it just doesn't support my weight enough, and it puts too much pressure on my wrists.

Might not just be the saddle that's the problem here though. There are a lot of tiny things in the fit of a bike which could explain the problem. I would look at the fore/aft of the saddle. Sounds like it needs to be a bit closer to the stem.