[1.2.274] Scroll changes

So do these scrolls work even if there are no slots left? If so, does this mean Nexon's item locks are no longer 100% safe anymore? Is there some sort of indication on the item of how many times such a scroll has been used? If there it works by calculating the number of slots you have left, does that mean you should use these scrolls first, because the last slot will be 7% work rate, or does it just mean the first one used on the item always starts at 70%? And wouldn't 70% dark scrolls be better? The bomb rate is absurd.

Sorry for so many questions.

1. Not sure
2. Probably.
3.Not sure.
4. If you do your first yes, it stays if you fail it and doesn't break.
5. Yes and no.
- Past 4, it's extremely risky.
- It consumes no slot, while 70% do.
- It can be used on ANY item with slots, except the select few with specific scrolls(I.E. HTP,spiegelmann, etc). While 70% are specific to one item, which can be frustrating.
Edit: OT: Not sure if might want.