Roberts Road bike build

Interesting read.

Although;

The KOPS rule of thumb has no biomechanical basis at all. It is, at best, a coincidental relationship that puts the rider somewhere near his or her correct position.

...point being I still think it's an ok way to get a rough gauge of where your saddle should be, which then helps you work out your stem length.

Not decisive, nor ideal, but probably worth doing before switching to an inline seatpost.