... Interesting to see someone riding a sprung saddle with drop bars. I have ordered the Moonsaddle to attach to my Thudbuster to give my perineum a hoilday. If the saddle turns out to be too high then I will try a sprung Brooks. I think my stance might be called semi-sporting, so slightly more raised than you using the tops. Having 4 sprung saddles could be considered being greedy. If you send half of them to me, that's 2 saddles not 4 halves, we will say no more about it!
I added the bold for emphasis above.
Sprung saddles: one on the Thorn Nomad, one on the Sherpa, one on the rando bike (photos above), one on the fold up bike. The non-sprung Brooks Pro: One on the vintage Italian racer to replace the 1962 vintage one that was on it and is now retired.
When I sit more upright, a wider flatter saddle like the B17 will work for me, but not on a bike where I might use the drops on drop bars. I bought a B17 over a decade ago, but did not like it. I eventually put it on a bike that I have on my trainer for indoor exercise, on that bike I sit upright so I can watch TV while getting some exercise. It is an old mixte frame bike that I picked up when a neighbor put it in the trash, works great on the trainer.
I did not previously mention that I have a Flyer which is a sprung B-17. I bought it on a whim when it was cheap on Ebay. I have used it on my Nomad when I am using my Nomad as a mountain bike and not using the drops on the drop bars. Since I am sitting more upright when I am doing mountain biking, the Flyer works better for that than the Conquest which is better when I lean forward more.
You will find that a sprung saddle like the Conquest or Flyer really is not much better than a non-sprung saddle for comfort. It is a little better for smoothing out the buzz on rough pavement, but it does not offer the cushioning that you might want if you have soft tissue issues. But there are some Brooks saddles that have lots of springs that might work better than the Conquest or Flyer. I think I deflect the springs only about 5 mm when I sit on the Conquest or Flyer, thus the springs are very very stiff.
The photos are of my Flyer on my Nomad while mountain biking.