The new flite looks flatter than the old one.
I loved the SLR but started getting weird sores on one side for no 'real' reason (it was comfortable, but I just had sores after the ride). Since then, I've been unsuccessfully looking for a new saddle. I'm guessing it was something to do with the width of the saddle, which is weird because I used my old one for a year with 0 issues.
Here's something Selle Italia has to say:
http://pronetcycling.com/choosing_a_saddle.htm
I found it interesting that they say that you should raise the nose if you experience soft tissue pain and lower it if you experience sit bone pain. For some reason that sounded counter intuitive, but it makes sense and reminded me that I'd never quite thought about it. So that might help me out as well haha.