Which should I use and what do you guys prefer? Assuming Premium Cubes have a 25% chance of 3L an item, I calculated the chances of getting at least one Prem Cube to 3L in five tries about 76%. And Premium Cubes also give me a better chance at increasing the rank of an item. But at the same time, I might prefer just paying a bit more on average but guaranteeing a 3L instead of risking the chance of losing a lot of NX on cubes. Wat do?