How do Augment Crystals work with double-weapons?

[S_Jerusalem]

I have been trying to find something on this for the last day or so, and just had to break down and ask.

How do aug. crystals interact with double-weapons? Do both "ends" have crystal slots, since they have to be enchanted separately? Is there any official ruling on this, or at least a good interpretation RAW-wise from one of the scholars here?

... Or will this be something I have to hash out with my DM?

It seems to me that it gives a little incentive for a TWF-er to roll with a double-weapon if it is one slot, applied to the whole weapon. But, it also seems like there could be some potential for abuse if you could stick a crystal in each end, as well.

Any thoughts or links to help me resolve this would be well appreciated.

[veekie]

One end a slot, considering augment crystals require enhancement bonus/masterworking, and those apply to individual heads.

[S_Jerusalem]

I thought that might be it. So strange in my mind, but I suppose it seems consistent with the enchanting of double-weapons. Heh, I think I will have an elvencraft bow with three crystals now... 

[Flay Crimsonwind]

Heh, I think I will have an elvencraft bow with three crystals now... 

How very fable of you.

[kurashu]

Getting a frying pan and attach four to it. That'd be extra Fable.

[nijineko]

triple throw enhancement on it for extra bonus. ^^ oh, and splitting on the bow part.

[Freshums]

I would say that each end is capable of holding a crystal.
But the MiC has some statement that says sticking a crystal on a weapon that is already holding one causes the previous to pop off or something.
So the question then becomes how much of a weapon is considered a weapon?

[veekie]

Well, since the basic weapon enchantment rules is that each end of a double weapon is enchanted separately, it'd make sense to extend that to general magic/weapon interaction.

[Senevri]

It makes sense if you think of how a weapon is crafted - well, except in the case of a quarterstaff.
Basically, a double weapon would have two separately forged ends connected to a single hilt.

[nijineko]

if i recall correctly, double and triple weapons are explicitly allowed to have two and three (respectively) weapon crystals, each crystal only affects the end it is attached to, unless its abilities apply to the wielder as a whole. for example, a crystal of adamantine hardness, would only affect the end to which it is attached, not the other end or ends. shields that are able to be used as weapons are where it gets questionable, though i imagine that one could simply apply a similar principle of 'only affects the part, unless it affects the wielder as a whole'.

[veekie]

Makes the Return crystal pretty nifty for multi headed weapons.

[nijineko]

but what happens if you try to grab the weapon such to wield another head other than the one with the returning crystal? ^^