Same Test again, without using Robbery, on 10 battles ( farming )
Sandra Skill "Find Treasure" OFF = 8 items drop.
Sandra Skill "Find Treasure" ON = 9 items drop.
I see here is nothing "Double chance drops" with that Skill.
Apparently 10% more drops.
Correct ?
Please try it.
( drops Chance 5% then Double Chance 10% ? Not logic. )