yeah ^^ while his voice wasn't too good, he is forgiven for he is ROBERT PLANT after all
yeah, they were not only different, but awesome. you find freshness combined with awesomeness in every zep show you listen to (except some shows from 77 onward - page was extremely poor during these years save a couple of shows including the one i mentioned in my previous commend).
good luck with the bootleg - it's awesome!