excellent idea of multiple sections. In your example the sections would take 19 rounds at most, the final of only 13 people would take only 12 rounds.
I would suggest you keep your totals throughout the tournament as well.
In the hypothetical version where you get only 30 points, is there still a 500 point bonus? Or would it always be 1/40 of the starting total? Or would it depend on the number of players?
(verstecken) Hast du lust auf ein schnelles Spiel welches sicher in den nächsten zwei Stunden beendet ist? Starte ein neues Spiel mit den Zeiteinstellungen 0 Tage / 1 Stunde, Bonus 0 Tage / 0 Stunden und Limit 0 Tage / 1 Stunde. (TeamBundy) (zeige alle Tips)