here, see what sense you can make of it :)
Implement Half-Life DR using 72 hour news
a) Half life of 18 hours * Relative Hit Strength, minimum of 12 hours, maximum of 24 hours (see d for EXPRESS)
i) ex1. If you hit with an attacking force of 110% of a targets defence, the half-life is 19.8 hours
ii) ex2. If you fail with 90% the halflife is 16.2
b) Continuous DR formula: DR_MULTIPLIER = DR_HITS<13 ? MIN( 1, 0.1+((DR_HITS-13)^2)/135) : 0.1
i) This is a simple smoothed approximation of the existing DR schedule
c) Hits older than 72 hours are IGNORED
i) With the exception of ALL-SET COUNTRY:COUNTRY DR, which is calculated with a 168 hour halflife (1 week)
d) EXPRESS HALF LIFE IS DIFFERENT:
i) 8 hour half-life (base) for Express (min 6, max 12); 72 hour ALL-SET COUNTRY:COUNTRY DR halflife
e) Reintroducing the 1/10th chance hits for specials
i) These was only removed for performance reasons in the past
EXAMPLE OF NUMBER 3
Hit Time (hours ago) DR, assuming 110% oversend
0.1 0.9965053771
0.1 0.9965053771
0.1 0.9965053771
9 0.7297400528
9 0.7297400528
12 0.6569882136
12 0.6569882136
12 0.6569882136
12 0.6569882136
24 0.4316335128
24 0.4316335128
24 0.4316335128
24 0.4316335128
36 0.2835781305
36 0.2835781305
36 0.2835781305
48 0.1863074894
48 0.1863074894
48 0.1863074894
48 0.1863074894
54 0.1510111806
54 0.1510111806
54 0.1510111806
54 0.1510111806
54 0.1510111806
72 0.0804165561
72 0.0804165561
72 0.0804165561
72 0.0804165561
TOTAL: 11.48
So, currently this would be 9 DR, but now it is 10.76.
Alternately, if you are in war, and survived a KR with 100 hits 72 hours ago where attackers were sending more than 133% of the break, with no hits since, you would be at 12.5 DR still, assuming you'd made no hits. Your attacking would reduce those, again based on time.