Konishi Ishida

First time poster, and relatively new to RD100; I'll post it in a numbered series of questions in attempt to maintain clarity. 1. Toughness is not a damage reduction but instead a damage threshold correct? 2. Assuming number 1 is the case, any damage under toughness is basically a scratch/bruise etc? And anything equal or over is an actual injury of some kind? 3. Unarmed attacks vs Armor, do they ignore armor or a portion of armor? How exactly does such damage work? The closest thing I did find is Unarmed attacks acting as stun attacks can ignore armor, but any dice are turned into d2. So a character with +1 might would only deal 2d2? Far as realism and mechanics meet, does it make sense to deal normal damage provided they can hit an uncovered location? Sorry if any of these questions are repetitive, I did a search but couldn't find any posts. Thanks for your time and assistance.