The 11-AR interval is for how often you have to make an Addiction Test. The threshold only drops if you do not use that entire week.
For your example:
- Day 1, they consume, week 1 starts
- Day 7, end of week 1, threshold doesn't reduce because they used during week 1.
- Day 14, end of week 2, threshold reduced to 1.
- Day 21, end of week 3: Both consumed during week 3, so threshold resets to 2.
Let's say both consume on day 1, on day 15 and then not anymore.
Week 1: Consumed, clock starts ticking.
Week 2: Not consumed this entire week, "every week you go without indulging
reduces the Addiction Threshold by 1", threshold down to 1.
Week 3: Consumed. "[Addiction Threshold] returns to normal when you use again", AT back to 2.
Week 4: Not consumed this entire week, "every week you go without indulging
reduces the Addiction Threshold by 1", threshold down to 1.
Week 5: Not consumed this entire week, "every week you go without indulging
reduces the Addiction Threshold by 1", threshold down to 0. "If the threshold hits 0, you’re off the
hook until you use the substance again", so cycle ended. We no longer are tracking.
Week 10: Since we are no longer tracking we don't care at all right now what they consumed before.
Let's look at two other scenarios:
- Both kept drinking without ever taking a break. In 40 weeks, Soykaffer went through 4 full cycles and faced 4 Addiction Tests. The Beer-drinker went through 5 cycles, so faced 5 Addiction Tests.
- Both started drinking on day 1, and drank for the final time on day 49, final day of week 7. At the end of week 8, the Threshold goes down from 2 to 1. Beer-drinker has to make an Addiction Test. At the end of week 9 (first week of the new cycle of the Beer-drinker, ninth week of the first cycle of the Soykaf-drinker), Threshold goes down from 1 to 0 and their cycles end. Until they consume again.
Let's look at Kamikaze and Jazz. Two runners, named after their favourite combat drugs, had a lengthy run that took 10 days, both on first and last day they were forced into combat and consumed drugs. Kamikaze: AR 9 = cycle 2 weeks, AT 3. Jazz: AR 8 = cycle 3 weeks, AT 3.
Day 1: Consumed, cycle starts.
Week 1: Consumed this week, threshold remains maxed.
Week 2: Consumed this week, threshold remains maxed. Kamikaze faces an Addiction test of Threshold 3.
Week 3: Did not consume this week, thresholds go down to 2. Jazz faces an Addiction test of Threshold 2.
Week 4: Did not consume this week, thresholds go down to 1. Kamikaze faces an Addiction test of Threshold 1.
Week 5: Did not consume this week, thresholds go down to 0. Cycles end.
Another scenario: A Street Sam used Shade to take a quick trip into the metaplanes and fight a Spirit there. AR 7 = 4-week cycle, threshold = 3.
Week 1: Consumed this week, threshold remains maxed.
Week 2: Did not consume, threshold becomes 2.
Week 3: Did not consume, threshold becomes 1.
Week 4: Did not consume, threshold becomes 0. No test, cycle ends.