I want to tell you something. The stereo mix of Thank You Girl was made on March 13 1963. It wasn't released in the United Kingdom for a long time until... until the Beatles Remaster Albums came out in 2009.
I'm listening to the mono version right now. I like that one better. It doesn't sound too echo-ey.
That songs a guilty pleasure of mine.
The stereo mix has taken me a little while to get used to, as I have been listening to the mono version for so long.
Hint: Listen closely to the middle eight and the ending.