Well, the Placate Proc is only on a critical hit, so even you if max out your crit chance, its still pretty rare. Seems like a way to put a small dent in Enemy DPS to me.

The Shield Regen vs Slower Borg Adaptation doesn't seem like a no brainer to me. Four points of shield regen per second is basically only a -4 to -10 (if you're got lots of Shield DR buffs) to enemy DPS. Ground DPS can get *really* high compared to ground health, so I don't see it as a must take. I wouldn't notice it (I already don't notice differences in Shield Regen mods on Armor and Shields), so for me, I would take slower adaptation since I would notice that (cause it does happen where Borg will adapt in the minimum time required for both your energy types).

I agree on the knockback. Its not something I want as a random effect.

About Weapon Proficiency. I only have the numbers for space, but +60 Weapons Skill is +15ish % base damage. So about 3-4% total damage. Its nice, but getting +3% crit, +30 Weapons Training is also really tempting.

Also, I did not realize the Borg Medical kits still dropped in TerrorDrome. Looks like I have to start running that mission.