asvpmarco
My understanding from your posted images above is that PRESCON has (had) two multistrand systems - the 'K' and the 'KP' systems. With the 'KP' being used for AASHTO bridges - so the 'P' nomenclature is just to distinguish it from the 'K' system.
Back in 2009 I scanned Chapter 2 of the 1972 Manual - this is pages 27 through 106, and details all the PT manufacturer's system information - but the file is large (> than 20 Mb, which is E-T's file upload limit), and I have to find the PDF because it has been a while since I have had to refer to it.