Of the 4 saddles you have mentioned, I have extensively used the Max Flite with the cut out. I like the shape and smooth texture, and it is very comfortable. My only complaints are that the saddle can get overly flexible (in my opinion) after a lot of use, and it sometimes seems like the elastomers between the rails and saddle base can get kind of squeaky - perhaps due to the excessive flex.

On a whim, I had tried switching to the Flite Gel since I see so many of them on the road. I didn't like the narrower profile or the embroidery on the cover. After a year on the Flite Gel, I switched to a second, new Max Flite Gel. I was wondering why I had ever switched. It just felt so comfy. However, the second saddle also flexed a lot and squeaked after extended use.

On my most recent bike, I swapped out the Selle Italia C2 saddle for a Fizik Aliante. The Aliante is generally pretty comfortable, and it is definitely quieter than the Max Flite. However the Aliante is not as comfortable for extended riding on the flats unless I get out of the saddle periodically. The Aliante's cover is so slippery that I have to angle the nose up slightly to prevent sliding forward and bracing myself excessively with my upper body. So... my next saddle might be the Selle Italia Flite XP (if it is still available), or... back to the Max Flite. I'll just deal with replacing it more often. I wonder if the Max Flite without the cut out would not get as flexy as quickly?

For reference, I am 215 pounds dammit - gotta get out of the Clydesdale Division this year! I like to ride metric centuries or longer during the riding season. I've never been measured with the Specialized Buttometer, but my impression* is that I have a wider pelvic structure (not just a fat ass). And by impression, I'm not referring to the one on the couch... although I did 22 miles today before my water bottle froze shut! So at least I'm out there trying...