>>1813991Parroting the sitbones marketing meme in 2022 and calling other people wrong. If that was the case a wider saddle would always be the safer bet for comfort (it's not). Saddle tilt can also mess up your "precise measurement" because most saddles are intended to be ridden flat for even weight distribution. Not all, sprung saddles are one exception, but for most saddles that is how they are designed to be used.
A good seat you should be able to ride with out a pad for a while but you notice most serious riders choose to wear a pad because human beings didn't evolve to sit on our genitals and 1inch of ass bone for hours at a time. Don't always wear bike shorts but if you plan to have long days riding, or if you're not very comfortable on normal rides, a good pair of padded cycling shorts can help. There is a reason everyone from distance tourers to mountain bikers and the pro racers use them and it's because they work.
Recommending saddles by brand is a starting point. For example 68% of the people riding the tour divide use a brooks saddle. They have different models but the brand has proven to have some widespread appeal which makes them so popular. The best thing about them or something like a selle anatomica is they are supposed to conform to your body so even if its not an ideal fit to start it will be once all the way broken in.
The shoe insole thing is about relieving pressure on the saddle by supporting your legs. It's the reason why nice cycling shoes have a super rigid structure, it distributes the force of your pedal stroke evenly at the point of contact so there is less stress going through your legs which in turn transfers to the saddle.
Ride your rusty rigid mtb back to your nursing home you dumbass oldhead.