the body of the guitar is giving off the twang- try a less solid body but hard neck. like a squire. drop a 1/2 step tuning too would help.. SRV also likes to use the body to bring out the bass tone., muffing the high ends..
Its the "thumb over the neck " Barre I cant do ( well tbh I can but then I cant do the little lick holding that Barre ) Kudos if you can Though mate !
Physically I am made to play instruments. I have great agility and very flexible in my fingers. However my brain doesn't work well enough with the rhythm of the notes.
little hands here. I cant do it well at all. from what i can do, the drop tuning would most certainly help. that dude has giant hands.