I thought it would be interesting to get other ideas on how the SP ranking system could work.
I guess one reason the current system is used, is to help prevent one-sided demolition games occurring in qualification. If this is a reason, then I think it is a reasonable one, otherwise new/weaker teams could become very demotivated.
However, it seems that the current SP system rewards teams who face weaker opponents and/or have very strong team mates through the tournament. In other words, a “lucky” draw. Not only can teams bank easy WPs but can also bank a lot of easy SPs. If you have a strong team mate and weak opponents in a match, you can control and boost your SP for this match, especially if the opponents cannot/do not carry out much de-scoring. Changing this to kill points still rewards a lucky draw.
My idea is to reward teams that have a hard draw - the SPs would be be based on the WPs for the 3 other teams involved in each match. You would add together the WPs of your 2 opponents and subtract the WPs of your team mate.
For example, your opponents have 2 WP and 4 WP (not so strong) but your team mate has 10 WP (is strong). Your SP would be 2 + 4 - 10 = -4 SP. This means, if you have an easy game, you are rewarded with WP, but penalised with SP. Your SPs would not be fixed based on the current WPs when the match was played, but would keep updating as further games are completed and each teams WPs are updated.
This is something that would need to be built into tournament manager to work. I think it would be great, as teams could glean a lot more from the rankings after qualification. Teams that had been carried, or just had a terrible draw, would be a lot more obvious.
Other ideas please, Paul