I just did a track audit so you data crunchers can have another test sample to analyze. Here's the results:
Straights - 59
Curves - 31
Shorts - 24
Ess - 16
How does that compare? Does it support or contradict the supposed odds?
Incidentally, to complete my 5-stop loop i now need only 38 more straights and 2 "S" tracks. I have a surplus of 13 curves and no surplus shorts but there would be an extra 8 if ideally swapped for 4 more straights, which would mean needing 42 more straights instead. I wonder how long it will take to achieve them?