Scratch the surface of Stirlings character and a different story might appear.
Gavin Mortimer has written a book called 'The Phoney Major' (as opposed to the phantom major),Gavin has been researching the SAS/LRDG/Stirling/Mayne for 25 years.
The subject TV series was obviously written using the gospel according to David Stirling which actually might be ffffffairly inaccurate (to say the least).
If you have 85 minutes to spare - might be worth watching this youtube video where Gavin is asked to talk about the real story of the SAS/LRDG/Stirling/Mayne.
I have not watched much of it yet but looks interesting for anybody interested in the real Paddy Mayne etc.