Just to add my 10 cents worth about Glenn's version of TITTL: I enjoy Randy's version, and I love Glenn's version too. I remember being quite annoyed at reading someone's comment on YouTube along the lines of "What were the Eagles thinking letting Glenn sing this song?" They seem to forget that Glenn has been doing this song solo since the '80s - he does a great version of it in the 1986 Japan show.
It doesn't matter to me that Glenn doesn't do the high parts in the end. Glenn is Glenn and Randy is Randy. If Glenn had to attempt to do what Randy did, it would just lead to unfair comparisons. Little wonder then that Tim refuses to sing the song.
Glenn sings this with tremendous feeling and the beautiful country-like sound in his voice is brought to the fore. I loved the way he did this in London. It really didn't matter to me that TS, AG and NKIT were dropped from the new set list - whatever Glenn sings, he sings it well. He's a wonderful, versatile singer.