Since this thread is no longer exclusively focused on how to reconcile the RDSS Segments screen with MPH Pro, using WO Race 6 and Blurricane as an example, and since Kevin doesn't seem to mind the wandering focus, well, here's my 2 cents with yet further screens:
Odds seem generous enough to bet on both #2 and #5, Top BLBL, VDC and several other factors (Sartin Methodology, 2-horse wagering ...??). Using longer than 5f lines, though the top 2 don't really change if you do.
Let's see where odds settle at post time ...
Ted