Here it was more "Ask for a proof if you (really) can't find how to do it by yourself"
Tough battles make big victories.And I have to say that I almost gave up, it took one and a half hour to find.
I'd never found it ! Thanks for this detailed complement.The culprit is, that the body has no Tip. [...]
What chrisb said is that he would advise that you restart your design from scratch (with all you new skills in your backpack).
Yep ! Used mainly in the software development world. Personally I use it to designate the standard/genuine flavor of something rather than a blank thing. But my mind was flexible enough to figure it out.
That was understandable ... at least for another non native english speaker.