Originally Posted by Leisesturm

Too much homework IMO. Original post is a classic example of 'too much knowledge' being dangerous. Ironically, for as much information as that post was loaded with, some information about the bike, and the o.p. themself (height, weight, overall build) might have been useful? Maybe. Maybe not. I think your first post to the o.p. was about as good as it gets. I have to think saddle height has to trump crank length in significance. I cannot find it in me to think the higher knee from a longer crank means much in the grand scheme.

For a 50° back angle, for me personally, a 135mm saddle would be way too narrow. They are probably sitting more upright than that anyway. Closer to 60° very likely. For that kind of position (for me) a cut-out is not a must. The BTWIN saddle could work for me. The Bontrager Affinity I use on that kind of bike is very flat with a minimal center groove, much like the BTWIN. Mine is 145mm. I am 5'10" and 205lb. So, not small, but beefy, if that makes sense.