Crumpp, you are in a restoration crew of a 190, right?
I don't know how far you go stripping the aircraft, but surely you either have some blueprints, or you have seen it with the naked eye, right?
On second thought, seeing it means you have it all in little pieces. There were some maintenance issues mentioned if there was a whole spar.
And there I stop and wonder. Now, a whole spar, as far as goes, from tip to tip, would be stronger than a joined one, but to fix and such, vastly worse. Look at the 109. Easy to fix. Take wings off while the fuselage stands on the wheels. Change engine (both on 109 and 190) in insane speed. So, - a totally whole spar seems a bit "un-german" to me, that's all.
Guess we'll have to wait a bit. Milo will bring some light in.