however, he was not nearly as prolific as a songwriter during that time, as he became later in his career. maybe he was still getting into the whole songwriting thing? (that apparently Stevie has dragged him into kicking and screaming during BN era), and he created these gems you mention, but there were only few of them. during Tusk era, he really blossomed as a songwriter. i wonder whether he considered himself mostly guitarist, singer, arranger, producer before Tusk time? and after putting together all these brilliant songs on FM and Rumours, finally figured out songwriting works well for him as an outlet, and he really is a brilliant songwriter too?
That's a really good point about Lindsey's songwriting, after Rumours he really seemed to go into high productivity with creating new music. When I think of the early 90's and how good Stevie sounded just around the time of the end of the Mask and Lindsey's stunning Out of The Cradle not to mention Christine being in a prolific period, we could have had another masterpiece of a Mac album, sadly it wasn't to be.
Fortunately for us, Lindsey found that second wind and has put together some of the best music of his career in the last 6 years. The most important factor I think is that he finally found that balance between experimentation and maintaining that appeal for the listener. I'm also a big Say You Will fan and think he did a fine job throughout. All that said, I'm still drawn back to '75 and Rumours, it can't be topped to these ears.