Look VTT Fournales fork

I am trying to get a frame designed using this fork. Anyone have numbers for this that aren't in the book.

i.e. how far forward does the wheel move under compression? I've tried working it out with a sheet of paper, ruler, compasses etc. and get 35mm, most of it, 20mm in the first stages of compression as the top of the wheel follows a curve and the design favours play.

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