May i be so bold as to throw george harrison in the mix here as well, a vastly underated guitarist, incredibly so. I think he had a huge influence on clappo´s songwriting without which maybe the great layla album wouldnt have been made maybe.Also although duane played amazing slide work and was a huge catalyst on the layla album, however i can´t stand his regular lead playing on it, he doesnt breathe...probably just jammin i guess and they kept it on..his slide playing is sublime dont get me wrong .
As for reached potential one man who did is Mr jimmy page and jeff beck(want to call him geoffrey
)....now neither for me are blues guitarist not up for debate...but i think these two defo reched their potential.
Lysergic took down greeny he had only just started, how old was he like 24 when he quit....?