The issue of Rags to Riches is interesting. If you compare the various releases of the supposed master, you will find they are slightly different. The first stereo release was on the silver box, but the mix was a bit different to the mono single, with guitars more upfront and piano a little quieter in the mix. The mix is muddy too.
Then we got the 70s box. The version on here is missing the backing vocals, but also spliced differently. The words 'kiss me' are as on the master. This I think was a vocal repair - I don't think 'kiss me' was taken from take 3, but I could be wrong. More importantly, the rest of that line doesn't match the master at all. Listen to 'tell me you're mine evermore' - totally different phrasing to the master. Then compare the same line from take 3 (Essential Elvis 4) and it completley matches the master! So what we have on the 70s box and all releases since then is unspliced, undubbed take 4 with the vocal repair on 'kiss me', but wrongly it doesn't include the rest of the line from take 3. I wish someone at BMG would notice this and release the single as it was originally intended to be
Hope that makes sense anyway. Cheers,