Very detailed info baz,I know your good at spotting the tiny differences in records! I would propose it’s simply a faster recording,simply because I’ve recorded in recording studios many times in bands,and based on the fact we’re talking the 60’s analogue,to record the song again would not produce the same sound no matter how hard you try,the individual musicians wouldn’t even care about being exact in phrasing etc...this is before you get to the mixing,the mixing involves adding reverb etc to every individual instrument inc each part of the drum kit! In fact the easiest thing to do as a band would simply to play faster or slower! In which case you may aswell just speed up the original master tape and or chop out out what you don’t want! Plus the sax break on the rouser has definitely been chopped manually cos it sounds a bit rough to be honest! To my ears the the songs sound exact in the phrasing of the band and the singers!