Are OTPs approaching custom standards?

You took the frame apart and re-constructed it to a geometry designed just for you?

Well done.
VB, I think you're being purposefully disingenuous. An OTP bike is based on the spec of the designer and the company's accountants. That said, a fit can be made to suit most people. The best example of this is Giant's bikes and their frames.

For example, the sizing of some of their frames is almost bewildering. Their Omnium track frame has such huge jumps between sizes, it is obvious that for some people, getting this to fit would involve some serious compromises.

Can we then say that the boffins at Giant don't know anyhing about sizing or fit on bikes? Thats a stretch for anyone to assume. Therefore maybe compromising in frame fit and angles is an over-rated premise? Its not my argument, its Giants. They don't have to say it. Their frames are doing that for them.

IMO, a custom bike will probably be the closest possible anyone can get to a perfect fit for the owner. But for the great unwashed public, compromises will have to be made with any OTP. Unless they fit it perfectly by lucky coincidence.