1.1 multiplier I'll add it in a moment
This is a +0.1 to the multiplier, right, not taking the multiplier and doing *1.1 to it, or anything else that's silly?
Assuming that the former is correct, and taking all known bonuses into account, SCS would have a multiplier of *1.55 (+.2 from Cultivation bonuses, +.2 from Spirit bonuses, +.1 from the Temporary bonus, and +.05 for being a spinal Art).
Plugging it into the formula, with the knowledge that Sixiang now provides a multiplier to successes and not assuming any bonuses for tutoring or training with a friend:
(T + S/4 + R) * A = (6 + 140 / 4 + 20 (High Medicine) + 25 (EPC)) * 4 = (6 + 35 + 45) * 4 = 86 * 4 = 344 dice * .55 (Average successes per die) * 1.55 (multiplier) = ~293 successes = 336 / 500.
(T + S/4 + R) * A = (6 + 140 / 4 + 20 (High Medicine) + 25 (EPC)) * 3 = (6 + 35 + 45) * 3 = 86 * 3 = 258 dice * .55 (averages successes per die) * 1.55 (multiplier) = ~220 successes = 263 / 500.
86 * 2 = 172 * .55 * 1.55 = ~146 successes = 189 / 500.
Yeah, if we want to get SCS 7 next turn, don't go under 3 AP on it this turn.