Thanks to Sony and the BR standards committee, there is no P version for PAL, only 24P. These guys never looked beyond the length of their nose to notice that the world is larger than NTSC countries only.
Judging interlaced material on progressive monitors is far from ideal.
For HD2SD Jeff Bellune has written a very good article on how to do that. Search for it.
after around 30 small sample exports, builds and different renders... I have discovered the problem and am now on track to fixing it..
it turns out certain adobe effects such as 'lighting effects' do NOT work well with slo-mo or frame held clips.. upon taking this one effect off, the clip looks flatter and less dynamic in context of my edit, but the clip plays normally no matter what the export settings, codec or format..
what's hallarious is that these effects and edits export and author perfectly fine onto DVD through Mpeg2.. i guess they just flatten better etc.. i get the impression when Adobe started crafting their software for HD they just built on top of the normal effects etc they already had and expected them to work.. if only Premiere could get the updates, priority and attention Photoshop does..
again, i love premiere's work flow, i just can't see how they can put the word 'Pro / Professional' near this software...
many thanks all