Hi Tom and greetings from Berlin. I really enjoyed your lesson. I think I will follow your blog since I really like the format of your lessons.
Essentially on the lesson, you go for a similar effect of slapping an upright. I do a similar thing when playing this kind of grooves but I use both my index and middle fingers for picking the whole time.
I used to be d*ck but now I am trying to be a dude. Some people don't get the difference...