Hi, I am trying to decide which saddle to buy between:
SM Mantra,
SM Aspide FX,
SMP Evolution,

And would appreciate it if someone could provide me with any of these saddle's height from rails to top of saddle

there are a couple ways this could be measured. for instance, when mounted on a bike and leveled off, the smp's rails are at a moderate angle. so... do you want the vertical distance from middle of rail up? and when you say "top of the saddle", do you mean the top-top, if a straight-edge is placed nose-to-tail, or do you mean to the top of the saddle at its midpoint?

I don't know about the SSMs, but here's the Evo data. The Composite (same shell) was the same rail-to-center height. The SMP is totally different sitting experience, so I hope you've atleast tried (and liked) the ones on your list and are only using the measurements to further narrow it down.

Currently ride Mantra. This diagram could help.

Wow thanks you guys rock!

I must admit not trying the SMP and I appreciate the warning, considering how different the ride might be. I am just looking for an anatomically "correct" saddle that has some good height on the rails, because I do not want to replace my already cut seatpost (pretty lame, I know) :/

I was previously using a Brooks B17 with a center height of 65mm. I thought these saddles were rather "tall" but I might be wrong. Any suggestions of saddles that are taller than the typical 40 to 50mm? I would hopefully be able to keep the weight below 250 grams! Maybe the Specialized Romin Expert??

My experience you sit a fair bit farther back on the SMP, where it's higher still. Hence Steve Hogs advice to use zero setback.

Best saddle I ever owned by a ridiculous margin. Second ride I did with it was 5 hours in the saddle... I came of the bike with sore hands, but my posterior had zero issues, not even noticed it when I jumped on my commuter that afternoon to get groceries.

Of course, your experience might differ!