Originally Posted by
Campag4life
In bold...common lament and debunks the validity of an Ass-O-meter as any basis for correct saddle width. Lets say saddle width is only 60% of the equation anyway and the rest is shape and firmness.
And there you go again. You really need to add the concept of "and".
If one isolates it from all other input, then yes, an ass-o-meter would not give meaningful information. Just like if you scrape the numbers off of your ruler, it will cease providing meaningful data when you hold it beside something. People misusing ass-o-meters does not mean that ass-o-meters do not work.
Fitting a saddle is a dark art, and subject to a great deal of trial and error. There is no shape that works for everyone. That said, taking into account things like sitz bone distance AND pelvic rotation AND seat height etc etc gives us a better starting point than just grabbing random saddles and slapping them on your bike.