Strateahed, Miles must have been one of the most egotistical musicians who ever lived; especially in his latter years. I saw him on DVD looking like a genie out of a bottle, in his Arabian Nights outfit, and although the musicians with him were so new that I didn't know any of them, they could blow. ( he never lost his ability to find the best musicians) The sax man was really gittin down, and before he could finish his solo, Miles jumped in sounding like an Ardvark fart; he was name only at that time. No way he would have done that in times past.
I have Miles Autobiography, and not one mention of Lee Morgan.
Enjoy the music.