dutret

Of course, there is a huge amount of adjustment available with seatposts, stems, cranks and bars. Most people won't benefit from a custom bike. Even less who don't know enough about themselves and geometry to help the builder design it.

Weight over the back of the bike is not a reason to adjust the saddle. If you have long feet and femurs and the bike has short stays you're just going to have to live with it.

Computed fits are piss poor methods of fitting a bike too. They vary wildly and never include enough variables.