Hello! thank you for the kind words!
I have tried to find some way of making the tracks snappable.. I was able to get them to snap together using the same scripting as the snap script for in game bunkers. however, it only worked in a straight line.. so it wouldnt be helpful for curves and isnt any more helpful then the building snap.
I have actually implemented your second idea! in the next track update, the rails will have collisions, but all of the railroad ties will only be visual. I did this to 1 reduce the number of collisions computers are having to make (it seemed to help some, not as much as I was hoping for) and 2 to reduce the bouncing. Again it helped, but not as much as I had hoped.. But its definitely an improvement!
for the number 1, it is scaled the same as all of the other numbers with the same font and everything.. it just looks a little different because of the spacing I think.. maybe at some point I will figure out how to make it look better by adjusting the spacing, but it would have to be specifically for the 1 and only for it.. I will see what I can do