Strings were removed from Fool before release, although some strings can still be heard on the released master of Fool.
The undubbed masters on 'Our Memories Of Elvis'
weren't really the pure undubbed masters. They
were the fully overdubbed or regular masters but
with certain instruments and backing vocal channels
removed or stripped down.
An edited (2:21) version of Burning Love,
with omitted part of verse ("Help me I'm
flaming, I must be a hundred and nine, burning,
burning, burning and nothing can cool me..."),
was released in 1987 on the BMG Ariola release
'The Definitive Country Album'.
Takes 5 and 6 of Burning Love can be found
on the Venus release "Unedited Masters -
Hollywood To Nashville 1972-1980" although
Take 6 contains overdubs, as the overdubbed cowbell
and additional guitar can be clearly heard.
The re-recording of Burning Love
can found on the 2015 album 'If I Can Dream', which contained Elvis' original vocals but with new backings by The Royal Philharmonic Orchestra, and which actually went to number one in the UK album charts.
An extended version of the already edited master
of Fool, with strings, can be found on
the Cassette version of the box set 'Elvis Aron
There appears to be some controversy regarding
the different mixes of the song Fool released
on FTD's 'Elvis (Fool)' classic album.
The mix of the song on FTD's 'Elvis (Fool)' (Track
14), FTD's 'Standing Room Only', 'Elvis (Fool)'
(1994 CD) and 'Elvis (Fool)' (Original LP) appear
to be the same.
The mix on Track 1 on FTD's 'Elvis (Fool)' appears
to have a different mix (0.5% faster, more echo,
the instruments themselves aren't so clear as
on the other mix, and the vocals are slightly
more on the right).
I think that Track 1 on FTD's 'Elvis (Fool)' is
the "Original Alternate Mix" and should
have been placed as Track 14, and that Track 14
on FTD's 'Elvis (Fool)' is the "Originally
Released Mix" and should have been placed
as Track 1.
Basically, they're reversed!
In March of 2007, Sony decided to go through all of Elvis' masters. They retransferred everything and remastered all tracks including repairing as many clicks, pops, bad edits and dropouts as they could. They have used these newly mastered recordings on their new releases since 2007 including budget soundtracks, 'Legacy' releases, the 30 disc 'Complete Elvis Presley Masters' collection and the Franklin Mint package.
Thanks to Luuk Bonthond regarding extended versions
of songs on the cassette version of 'Elvis Aron
Thanks to Adrian V Stokes regarding the edited
versions of songs on the BMG Ariola set of 'Definitive'