I just found a lesson I love because it's using a pick in E: Saturday Evening Blues in BGU Insider. Why it's buried in there I don't know, I stumbled on it (that's why there should be an index), it should be in the Acoustic section. But it had an open, actually a turnaround used as an opener, and it had a finger twanging the high E so I tried it. I discovered that I can do that, but just that cuz it's one finger and his E I can't miss it.
However, I don't attain the real clear sound that Griff gets with his no pick finger, I can't tell if he's using his finger nail (the video was made in 2011 so he won't remember), the flesh of the end of my finger is plucking that string so I don't get his clear sound on the high E. Another reason for me to avoid hybrid picking.
Also I noticed something that can be improved for free in his videos. I can not tell what his picking fingers are doing at what time, on what string, because the camera is aimed smack straight at the tops of his knuckles. I recently retired after 44 years as a Director/Cameraman for TV shows and documentaries, plus I shot a zillion training videos. The close up of his right hand camera, if it came in at more of an angle, say maybe 30-40 degrees, and from a little below, bounce some light from below, then I could see which finger is doing what.
Ned