Then is it a real 10x increase in output if the output is in supporting areas and not the code/feature delivery? It seems like you’re saying that you are now able to maintain documentation at a faster rate and increase testing but not the actual development speed of the feature itself.
I said 2-4x on value.. which would be development of the feature itself in terms of direct output... not even considering setting up test harnesses and doing more adventurous changes that would take me a lot longer to do.