3. The only addition to the Grail scoring system could be some kind of difficulty coefficient, but who would determine it, and is it even necessary? I don't think we should complicate things for ourselves. Besides, there's an experimental GAME RATING that already takes into account both the number of participants and the difficulty coefficient. ;)
Regarding Grails, I can suggest introducing a dependency of Grails on the number of participants:
A participant receives Grails according to VDV forever's system + receives additional Grails, depending on the number of participants. The additional Grails are calculated using the formula 3*n/(m+2)-1, where n is the number of participants in the tournament, and m is the player's place in the tournament. Thus, the winner will receive an additional n-1 Grails, the second-place finisher will receive (3/4)*n-1 Grails, the third-place finisher will receive (3/5)*n-1 Grails, and so on, and the last-place finisher will receive an additional 1 Grail (except in the case of 1, 2, or 3 participants, where they will receive 0). When calculating, rounding is done downwards.
Все люди - братья, но в каждом из нас спит волк.