I’m trying to evaluate the usefulness of Ooze Flask against raid bosses and quest red names. At the end of the day, I'm interested in how I can keep Ooze Flask debuff up 100% of the time. I don’t currently have a rogue to test with, so I’d appreciate insight people can share with their personal experiences using Ooze Flask.

Ooze Flask supposedly has a DC vs Fort of 10 + Rogue level + INT bonus. At level 30, that’s roughly a 60 DC which means it should be negated unless a mob rolls a 1 on it’s Fort save. I’ve heard conflicting reports that the uptime is actually much higher than that, suggesting the DC formula is something else. It’s been suggested to me that the formula is actually based on Disable Device, affected by the Improved Trap enhancements. If that were true, then it would take an LGS INT +39 skills item to get a Disable Device DC in the mid 120s which is a serviceable DC. Crafting an LGS item is quite the investment to test something out, which I’m hesitant to do with my limited mats.