The Term "before you make a roll" and Morale Bonuses

[Princess Animal Parts]

I found a Potentially Quirky Mechanic and wanted to clarify something before I Brought up another Point.
First let's Start with a Morale Bonus of +1 to a Roll (just and Example)
Now let's Take the Spell Moment of Greatness on the cleric list. it has the following effect:
Each creature affected by this spell is given the potential for greater success and glory. If the affected creature is benefiting from a morale bonus of any type, it can double that morale bonus on one roll or check, before making the roll. Once an affected creature uses this spell’s effect, the spell is discharged for that subject.
Now here's where my Question comes in... Can The Subject Decide What he will use this Doubled Morale Bonus ahead of time (effectively Discharging Moment of Greatness) and Have it Casted Again on said Subject to Do the Same thing with the same morale bonus Doubled Again? or does the Term "Before making a Roll" only Apply Immediately before said roll is being made? Be that roll a Damage roll or ability check or What have you.

[Kazaan]

The effect is spent at the time of the roll but you must declare your use of it before you make the roll.

If you've already rolled, you can't apply the bonus.
If you declare you intend to apply the bonus to a roll, but some other effect blocks the roll from happening, you still have the bonus.
If you declare intent, you still have the effect until the roll is actually made so it can't be double-dipped.

[SlimGauge]

No, because the multiplied morale bonus is from the same source (a casting of Moment of Greatness).

[Princess Animal Parts]

The Way i'm Seeing it as soon as it is Discharged The Spell is no longer in effect Therefore the Target is susceptible to it Once again For he is Not Being effected by the spell and just has that Doubled Morale Bonus also Does not Specifically say you have to declare it's use even though it is probably assumed

[SlimGauge]

What is the source of the difference between the un-doubled morale bonus and the doubled morale bonus ? What would be the source of the difference between the doubled morale bonus and the trebled (or quadrupled, but that's not how Pathfinder doubles things) morale bonus if your scheme worked ?

Just as you can't get the benefit of Bull's Strength twice, you can't get the benefits of Moment of Greatness twice on the same roll.

[Electrostep]

SlimGauge wrote:

What is the source of the difference between the un-doubled morale bonus and the doubled morale bonus ? What would be the source of the difference between the doubled morale bonus and the trebled (or quadrupled, but that's not how Pathfinder doubles things) morale bonus if your scheme worked ?

Just as you can't get the benefit of Bull's Strength twice, you can't get the benefits of Moment of Greatness twice on the same roll.

This makes sense however this isn't simply "like bonuses" like bull's strength's enhancement bonus this is a morale bonus being multiplied by a factor so I can imagine there being a theoretical way to circumvent this. Perhaps metamagic? though it seems unlikely.