From 43:04 to 1:03:41 in this video, Anton has a long segment where he claims that Guthrie’s technique does not allow him to play long alternate picking patterns without tiring out and making mistakes. I think he’s right in pointing out that Guthrie is having trouble playing the piece cleanly and gradually makes more mistakes as he goes but the rest of the analysis seems pretty unsatisfactory to me given that he doesn’t exactly lay out the specifics of Guthrie’s actual technique or hand position in much detail.
My intuition is that it is a difficult piece (which Guthrie does not appear to play live very often it should be noted) comprised of many unorthodox/uncomfortable patterns which cause Guthrie to tense his forearm up more than usual leading to stamina issues. I’ve personally had this problem when I first learnt Gilbert’s Technical Difficulties in that I physically could not get through the first section without badly tiring out as I really had to concentrate in order to play the “scratching the dog” riff clean. The stamina issues seemed to become less of a problem as I became more comfortable with the piece. I’m a little doubtful that Guthrie’s technique is such that it does not physically allow him to play something like this without tiring out. I’m curious as to what everyone else thinks about it.
In light of some of the A.O threads on this board I’ll briefly add that this isn’t supposed to be an attack on A.O or anything, I’ve learnt a lot from his videos and think his analysis should be taken seriously.