I think that CD do rate spoils reasonably highly:
May: 63DT 123SC - 13 x 1%; Andrews: 34DT 83SC - 16 x 1%; Rowe: 36DT 72SC - 15 x 1%;
But Thompson (Nth) had only 4 x 1% and 0 x CM but 58DT 88SC. I can't see what else he did to rate the SC score.
I also watched the GCS v Brisbane game and Lynch was beaten on the day by Andrews. He ended up with 72DT and 101SC off the back of 3 goals, 2 x CM, 5 x marks inside 50. But in my opinion it was undeserved.
In sum, I think figuring out the CD scoring system is nigh on impossible.
What we can do, and what I try to do, is:
identify which players CD rates highly because those players will almost always have a very good SC->DT ratio: Ablett, Fyfe, Bontompelli, Jellwood, JP Kennedy, Pendlebury. Always worth picking because they often score well even on minimal possessions.
identify which players CD does not rate as highly, ie a lower SC->DT ratio: eg Rockliffe, Steven, Adams, Grundy (Coll). Can be worth picking depending upon circumstances, eg Adams as defender, Rocky simply due to the number of possessions he gets.
identify which players are likely to be more highly rated by CD this year. Not easy but reading the Prospectus and listening to Pure Footy on SEN helps. Or note which players are being talked up by the experts and so likely to be more noted by CD when they play. Lynch (GC) is one such: talked up by Derm and others as one of the best players in the AFL. Of course CD are likely to rate anything he does highly.
Sometimes I follow my own guidelines, sometimes I don't.
I didn't pick Lynch. I picked Treloar over Pendlebury - due to injury concerns, but still.
But part of the reason I picked Nankervis was because in the Propectus it said that he is a CD favourite.