Sub/Combat > Sub> Ass for overall DPS but you have less control and less energy regen.
Reducing a clothie's armor down to 0 drastically reduces the damage mitigation they get, which in turn increases your damage from white hits, which is why you want to do it early. I've tried using EA against plate wearers but the mitigation is not that great so bleed effects (rupture) are better for them IMO.
Damage "improvement" from 5-pt EA for different base armor:
Armor EA % Imp EA %
3000 17.81% 28.42%
4000 16.39% 26.78%
5000 15.18% 24.63%
6000 14.13% 22.81%
7000 13.22% 21.23%
8000 12.42% 19.86%
9000 11.71% 18.66%
10000 11.08% 17.59%
11000 10.51% 16.64%
12000 10.00% 15.78%
13000 9.53% 15.01%
14000 9.11% 14.31%
15000 8.72% 13.68%
17500 7.88% 12.31%
20000 7.19% 11.19%
22500 6.61% 10.26%
25000 6.12% 9.47%
27500 5.69% 8.79%
30000 5.32% 8.20%
As for KS earlier in the cycle, I tend to be able to kick and gouge to interrupt spellcasters and I usually leave my KS for when they are half dead because once I KS them at half dead they are usually dead very shortly.
Kak, you talking about Remorseless Attacks instead of Relentless Strikes right? I used to take 2/2 from there, but it's pretty random and I found that I was doing more overall DPS with Murder 2/2. Depends on how often you get the killing blow in.