I’ve ridden both the Aeolus 155 plus a stealth 152. The first difference is the Aeolus flexes more, that could feel odd for you. Plus I think the pro is very slightly wider at the mid point. The Aeolus is slightly more rounded side to side, it’s still a flatter saddle but not as flat. The Aeolus also dips a little more in the middle, which is compounded by that flex.

Both are great saddles. At the moment I’m on the Aeolus as I’m unfit plus my back is playing up a bit, at present the Aeolus seems a little more forgiving. However if fully fit I might bring the stealth back in, the stiffness of it was great for hard efforts.

This also is road bike set up, for the TT bike I’m on an ism ps 1.0.

Hope that helps.