I don’t think skill can be represented just by kd. Kd can be inflated by many factors such as six staking. I’m pretty sure bungiee measures skill with a different number that we don’t know how is calculated but you can see in destiny trials report. And as for trials loot, as long as you don’t care about losing or your kd and stuff if you can get wins on the card eventually, you will get loot drops. And I think that they mentioned something about losing streaks and easier matches. Not exactly sure when but I think it was in a twab