Yes, interesting.
What I could add to it is that I remember reading somewhere that the 1st season the TI bikes were simply rebadged Prestos.
Loek Valk, current owner and back already involved in the Presto shop, told me he assumed Legrand built the most or at least a substantial number in the Presto shop. I'd rather not doubt his words, but maybe he had no idea how many were built elsewhere ...or maybe it was only the case in particular years? I am afraid I do not have a line to Jan Legrand - who could shed light on it.