How much more one could question when the U/L concerned is not a Sling but a Skyranger.
Below is one of the videos about French aviator Thierry Barbier's round the world Skyranger adventures.
Sadly, he did crash fatally, in the end but, ironically, not on one of his high risk legs but due an EFATO on a local flight in Kenya in 2016.
[A rough english translation is available via YouTube's Auto-translate function. ]