After your (and Churizo's?) comment about the russians being more deadly, I looked into it again and cannot reproduce it very reliably, but it happens sometimes. I tried lowering aimingShake, but that just made the enemies hit vastly less and be less effective at suppressing me @ 100m. However it seems that, like with other skills, "1" (max value) seems to have some special meaning that may be causing this. I'll set it to 0.9 instead, which seems to be very close in aiming accuracy and spraying less, without those insta headshots. Thanks for the feedback!
After the resent test i don't have to add much more than this change would be highly appreciated... at least for me!