Just finished reading. An interesting & easy read but I was staggered by a few "facts":
p 50: Marvin was forced into his early nightclub songs and hated the routine
p 84: Stevie brought Linda Laurence in as the new Supreme
p 87: the O'Jays on Motown?
A pity because a lot of it is obviously researched from first sources, particularly Al Abrams, but with the examples above you just begin to wonder how much really is accurate.
Still a great effort.