If this is the case, then I would probably switch to only playing WTA games when I care about my ranking, as a solo in PPSC means little to nothing over a draw or even a survive. I can be the strong second and do better than the player soloing in this current system.
Fundamentally:
A draw, even in PPSC is a failure by one player to solo and a victory by the other players who stopped the solo.
A strong second in WTA is a failure by the surviving player to either solo or force a draw, whereas in PPSC, a strong second survive is counted as a decent showing (debatable whether it should ever be counted more than a draw, but imo, in no circumstances should it ever be counted as worth more than another player's solo).
In no case should a player who solos get negative points, and in the case where cypeg solo'd and rancher had a strong survive in the game cypeg mentioned, it should never have happened where a top 150 player lost to a top 25 player and yet had a better showing in ranking increase than the player who soloed. That is fundamentally incorrect, and I've identified exactly why in the formulas. Just by playing against cypeg and doing halfway decently, rancher couldn't lose in ranking.
If the heuristics isn't enough, let's take a look at the statistics of the game you mentioned:
http://www.vdiplomacy.com/hof.php?
gameID=398Bozo failed to stop allanxo's win, and only lost -0.16 for doing so.. That is fundamentally wrong while allanxo only gained 0.16.
With my change (all other numbers vs survives for bozo remain the same):
bozo would lose: -1.43 to allanxo's solo instead of -0.16 (Rr = 0% instead of 40%), and still gain +12 instead of +14.
The difference is in how allanxo's score changes: (Rr's of 100% instead of 60% and 82% respectively)
against Bozo he gets 1.43 instead of 0.16
against OlympicTorch he gets 3.43 of 2.13
Final score difference for him is +22 instead of +20
OlympicTorch remains at +1
For allanxo:
+22 of 35
that changed hand this game toward winners/survivors is 63%
+20 of 35 is 57%
+28
-points of the 52
that changed hands toward winners/survivors is 66%
For bozo:
+12 of 35 is 34% under my system
+14 of 35 is 40% under your system
+15
-points of 42 is 36% under the system in place when played
For OlympicTorch:
+1 of 35 is 3%
-1
-points of 42 is -2%
So in reality my calculation of Rr being 100% for solos regardless of SC's is actually closer to the original results based on the scoring system in place when the game was played.
So, unless enough other players lobby to change the current system and/or reset scores back to 1000 (if absolutely necessary) to account for the 'new correct' scoring method so that solos for PPSC are given proper value... I'd like to propose at least that my 'fix' for PPSC solos (Rr1 = 1 for a solo in all circumstances and Rr2 = 0) at least be implemented (at some point) as an alternate ranking system, possibly including my recommendations about adjusting the scoring to avoid a survivor from having a score increase greater than a draw:
n = the number of players with more than 1 SC at game's end:
Draw = 100/n%
Win = 100*(1-1/2*n)%
Survive = 100/(2*n)%