I don't get to add value to this forum very often, but on this subject I just finished watching two different conversations with Greg Timbers where he touches on this very subject. I think it is the second one he goes into depth on the evolution of the driver to horn transition designs and how to use modern technologies to streamline the process, they are long but very worthwhile conversations to have the liberty to watch and hear.

https://youtu.be/afeTHLLp-EI