So I just finished testing all Mods and of course it was the last one to add. Habtech2 or one of the bundled mods is the culprit. Will check tomorrow these parts in detail. As soon as I added it, the same behaviour comes up. Removing it and it is gone.
Sorry for wasting your time with a broken mod. Again thanks a lot for your help and time!
BTW: How did you get readings per part on the drag? To see that the convert-o-tron is placed badly?