Originally Posted by
scottside
It's easy to assume that Glenn is playing the acoustic on WITW because he did it alive, but I'm way less inclined to believe he did so in the studio. That's not to say that he didn't (I don't know that), but for the sake of expediency it's very possible that Steuart did most if not all of guitar tracking for this song. As far as the others you mentioned, I think you're probably right about Glenn not being on BAU or FGOTBP, but there are guitar parts (electric) on FC that sound uniquely like something he would play. I also agree that there are some of his songs that he may be the only "Eagle" playing on although I'm sure the backing band members are there in various numbers.
As for the missing credits, I can only think that was done intentionally to avoid publicizing what little collaboration there really was while making the album. There are only a few songs that I feel really sound like a band: "How Long," "Somebody." "LROOE," and "Busy Being Fabulous." Maybe one or two others might be possibilities also.