Χαιρε Μαρκε, φιλε μου!
It appears it is now out.
It is but it isn't, lol, the one that is out now is the preliminary printing, that is, essentially the "as is" PDF that is available at http://www.walkinhiscommandments.com/pickering2.htm
. It does not have accents and is printed in 8.5 x 11. It is a Perfect bound soft cover book with what looks like 10pt font. The apparatus is very thorough!
I'm still working on proofreading and accenting with Mark, Luke, and John still to go. I'm hoping to be finished with the project by late spring (still have to add the apparatus to the entire NT), at which point the updated copy will have full accents and will be printed in a 6 x 9 book.
CSPMT ( http://www.cspmt.org
) has just recently opened a discussion forum, so if you have any further questions about f35, they would be answered there
As far as your question goes, There are about 1000 variants between RP and f35 http://www.cspmt.org/pdf/collations/RP%20
]%20Kr_fam.%2035.pdf. Most noteably the PA which has the M7 profile for F35 (instead of m5) and the Kr text base instead of Kx.