should not the TGV tracks be 17t axle limit, or at the most, 21t for class 92?
also, the eurostar head units should be 68t, to keep within the 17t axle load limit on TGV tracks.
Thank you for these suggestions. The "TGV" track is a little ambiguous, as it is intended to represent UK domestic practice, such as HS1 on which, as you point out, class 92s can travel, so I have reduced this to 21t as with your alternative suggestion.
I have also found all the correct weights for each Eurostar vehicle (as here (http://www.therailwaycentre.com/Recognition%20Tech%20Data%20EMU/EMU_373.html)) and made adjustments accordingly. Finally, I have added a catering vehicle, as the set was previously missing one (although I have not added separate graphics for it yet).
Thank you for the research/suggestions.