I don't think JH would have gone the way of Clapton - more Jeff Beck - his later unreleased stuff has more jazz/funk influence and that apparently is where he was going.
I thought the songs on the docu were almost all covers - could be due to having to pay too much to Janie Hendrix, but it didn't really bring enough of JHs more subtle playing out for me.
I have the Axis video - well worth £4.50 - as the man said, no tab, but Andy Aledort can explain things really well and unlike those signature lick videos the camera angles are just right to pick things up.