Regarding Pinnacle Scrolls/Lucky Day Scrolls/Diligence %Scroll Success

Here's an idea:
I've used a protection scroll on a weapon with zero enhancements and it wasn't used with the 100% AEE. I would think Lucky Days would work the same way; not getting used if it won't have an effect.

Someone could try using a Lucky Day on something and using a potential or enhancement scroll and see if it gets used? Not that it really proves anything, would make me think it works though.

That means clean slates are not special scrolls