I've always been under the assumption these were both boots of the 14th Feb shows until I listened to Uptown from both back to back - on one he says "'Frisco" and on the other he shouts "San Francisco"...there's also difference in Let's Work (e.g. "Live" has a bit of chat near the start about umbrellas!).

So presumably, one of these show's has is from the 15th Feb instead (which I think I'm right in saying has an identical set list - per PrinceVault)?

Anyone have any idea which is which ?!?!?!?

You are correct. Interesting, I don't think I noticed this before. There's very noticeable differences throughout. I think one must be 14 and the other 15 but there's no way of knowing which is which, I suppose.