BMW E60 530i SPARK PLUGS REPLACEMENT DIY

Short DIY tutorial on changing the spark plugs on E60 BMW 530i 2009 N53 motor.
All you need is 13mm socket, T20 bit, 14mm 12-point socket, torque wrench, regular wrench with extensions, 6 new plugs and about an hour or two of your time.
As for the spark plug socket, it´s a special 12-point 14mm socket with thin wall. I still couldn´t fit it into the spark plug wells. So I had to grind the socket to make it thinner. RIDICULOUS !!!
As for new spark plugs, I went with BMW recommended NGK plugs. The torque spec is 23Nm.
I do NOT use grease on spark plugs threads, and this is why:
"NGK does not recommend the application of lubricant such as copper grease to spark plug threads as the result is a reduction of frictional forces at the thread faces. This will render the torque readings inaccurate and over tightening could occur by up to 20 percent!"
As I am not professional mechanic, this video shows how I do it, not necessarily how it should be done. Do this at your own risk.
I will be happy for constructive suggestions and advices.
Have a great day, guys.