This looks like a good candidate but might need some splitting out, particularly as there are references to T55s as well:-
http://tentenths.com/forum/showthread.php?t=41483
I have taken the gamble of moving a few 'standalone' threads into here and hope you agree with that. Some are clearly awaiting updates! There are others which could be suitable that I haven't yet moved because they don't really appear to have enough 'meat' on them.