One of my favorite buried treasures! Ashamed to be a snob but I was damned surprised when I first heard it - never knew Boz had THAT MUCH in him. I get so happy when I find someone else who appreciates these recordings. You probably know about the Clapton/Allman recordings as well? These collaborations are pure joy.
If I recall correctly, Boz grew up w/ Steve Miller and played on his first few albums. Silk Degrees was obviously his masterpiece - made possible in the studio by what would become Toto.