It just struck me that while "skillful lunatic" was a tongue in cheek phrase, that the lunatic part is probably quite wrong. He is probably a nice solid Germanic type of guy (who just happens to wear white sox with his loafers - but we won't hold that against him) and I would be willing to bet that Stefan has probably been doing this stuff for many years (maybe decades) and that the risks he takes are very calculated and (in his mind) not so large at all. Judged in his own paradigm, does that make him a lunatic? Probably not.
Incredibly skilled? Yes indeed. I have a friend with a 930 race car - 450hp with the boost down and 650hp with the boost turned up. He took me for a ride one day with the car on its normal street tyres - Hoosier "slicks" on normal 16 inch Fuchs. Now this guy has been a very successful Porsche racer for 3 decades so he knows how to drive, but his demonstration was impressive. Big powerslides in 2nd/3rd anywhere from 60mph to 120mph and big black lines layed down on the track on every corner exit. The point being, I didn't feel unduly concerned sitting in the passenger seat. Does that make me a lunatic?
Too existential?
RB