I'm not convinced, just because we have not found it doesn't mean it didn't happen, to believe otherwise is to imply you have seen every document ever available about the 190, which I have not.
Sigh - NO Ardy - it means I have a clue regarding the cost of changes to manufacturing processes, tooling, materials (Castings forgings extrusions) lead time for new castings forgings and exttrusions, re-training your assy team for the changes, re-costing (and submitting to Der Fuhrer), etc, etc.
Changes in major sub assemblies don't happen because 'it seems like a nify idea'.. and even much more emphasis must be applied to the hardhead German engineering mentality.
Just out of curioisity how much time do you have slaving in the 'airframe biz'?