Originally Posted by cyclezen

Not being contentious...
But If KOPS ain't somethin, then what is? There's always this load called " A Lot of Other Factors" - what are these factors?

if KOPS is not 'precise' enough, what is? the whole 'Balance the torso while pedaling under some load' certainly is hugely variable and certainly way less precise KOPS.
... all this then leads into saddle height and where you put the cleat position...
how much lean for the torso ?
There really is nothing currently suggested which isn;t totally anecdotal.
for many decades KOPS has been the start point, with mostly good results... other methods also seem to work for some.
So, OP, there currently isn;t any definitive on what you're asking; so one must start with something... maybe just starting with the saddle mid-rail ?
one can certainly spend the money to do position/power testing, or one can 'experiment' on their own (not always a successful methodology).
But then you have been a BFer since 2014, and likely riding some, during that period; and have already made some decisions...
so this likely another 'winter' thread ?
Ride On
Yuri