Yes I'm aware of this; with jewels I'm currently at 105 taming and 110 lore.
Real taming is 79. By raising taming up to 84 I will have modified skills at 110-110. The danger is being eaten by a dragon while attempting to tame it and then getting looted.
So I have a chance of taming a GD long before I can train taming to 110, but the risk is that I may loose the power scroll if I die.
Therefore I'm considering to "die" in a safe spot, ress and pick up the scroll if possible and not use it until I'm ready to face the challenge. (Dying because of a lost connection or another mishap while training would be kinda silly if you risk loosing the scrolls which are kinda difficult to obtain).
I'm not understanding what you're referring to....
Power Scrolls only raise your SKILL'S CAP to that number, PERMANENTLY ON USE.
It doesn't automatically (temporarily or otherwise) raise your skill, though it will allow you to use jewelry to get up to the skill's new cap.
Without using it, it does NOT raise your skill cap.
"Cursed" means that if it's NOT USED, it can be stolen.
IF YOU USE IT, IT'S A PERMANENT CHANGE TO YOUR CHARACTER. You can't lose a scroll you've already used, from death or any other reason.
Think of it like a baby...
When a woman is pregnant, there are numerous things that can prevent the baby from being born, deliberate or accidental. (think of this as the PS in your pack). It can't do anything, and is just being carried.
Once a baby is born, though, it can't be "un-born". (A power scroll used). Even death will not make it to where it "never happened".