the elite never had the wishbone rear end, basically it was an improved aluminium O, my 2 'O' bikes both had 1 1/4 headsets, 27.2 seatpost sizes, also, it had power stays for the chainstays and seat stays also it had a chainstay bridge, the elite however has power stay chainstays but with no bridge and has round seatstays, having owned and ridden both models the elite rides so much better than the 'O', i think mainly because of the lack of power stay seatstays and the lack of the chainstay bridge, it gives the elite frame a bit more 'give' that the 'O' simply doesn't, it was so harsh to ride!
if memory serves the 'O' was available from 91 and the elite was from 92 although they ran along side for a couple of years after, it is however true about the small batches and difference on the same year model, usually it was differences in things like the cable guides, i have seen 3 different types on aluminium O's
both your elite and p7 look fantastic though, i look forward to seeing them built.
FYI, i have the limited edition ano gold elite, built with xt and 1st gen rc30's, also have a 95 nickel p7 with full m737 xt that is almost all catalogue spec.
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