Rich, I find different saddles present the spot your sit bones rest upon while riding in slightly different manners unique to each make and the model you've chosen.
I find the overall attitude of the saddle in side view distracting from the sit bone contact point, either the rails or balance of the seat's structure appearing to be at an angle to that, creating the overall appearance often derived from the nose of the saddle.
My Brooks Professional on my Rambouillet looks a bit "nose up" but in reality that is what makes the sit bone contact point level. Probably also involved is the amount of drop or hammock between the cantle and nose that I find most comfortable, adjustable with the tension hardware in the front. Brooks saddles are often seen in some pretty stretched, hammocky states requiring an exaggerated nose-up attitude so rear of the center of droop, where sit bones rest, isn't too steep of an angle requiring effort to hold that position on the seat.
I have a slotted Rivet Pearl on my Coast Rando with the same flat sit bone position but it looks different in overall profile. The slot eliminates the need for the drop or hammock, that happens albeit slightly when I sit on it. The slot prevents a midline ridge of tension from forming when sitting. The two sides are able to respond to sit bone load, nominal distribution of that and not have the lesser loaded area in between stay up high, your perineum being made an unhappy bearing surface.
I'd advise a realistic assessment of where you contact the saddle with your sit bones, start with that specific part of the seat being level, wherever you need to be in the fore and aft, up and down adjustments then give it a try and fine tune, regardless of what the overall saddle posture looks like. I move front-back a lot while riding before I stand to pedal so I use a 2 1/2 to 3" segment as my visual for the place I'm trying to make level when setting up a saddle. I cut a 3" bit of 1"x2" (actually measures 3/4" x 1 1/2") to put on that place on the saddle and used the level in my phone on that to assess how well I eyeballed it.
Andy Cheatham
Puttsburgh