About find enc ability: means you can find other player encounter in radius half square with big chance.
One hander drawback is about adfitional roll to be crippled\weapon drop
Awareness gets each player at 26lvl
For pyroman you must burn many ppl
About drop/cripple/avoid chance:
It works only when someone crit you in arms and not connected anyhow to crit talbe, per STR bonus/penalty is 5%.
So weapon require 7 str and you have 3, you will get chance to be crippled while crit 20%, affects only crits to hands. For one hander bonus to avoid cripple/drop is 10 while wearing one handed weapon and additional chance to get crippled 20% when using two handed.