Feat - Improve Critical w. keen weapons

[Tortus]

Hello,

I just trained Improved Critical on a character and noticed no increase in the crit range on one of the weapons my character carries, and was subsequently informed that it is due to the weapon being keen - that is, having the effect of a doubled crit range already.

There is no flag like that which I can see on the weapon, and the help files have no information about anything like that.

I suppose it's a minor issue, since there aren't many weapons like there around - supposedly only one. The weapon in question is a pick with a crit range of 19-20/x4.

What I was thinking was that logically the effects would stack. The keenness is a property of the weapon, and the feat is on behalf of the character. However it may be too much to ask for this to be coded. Maybe a mention in the help files about this?

[Raona]

Anyone out there up on these rules and game to draft a helpfile for keen and a modification for improved critical? (If so, please just reply with them here!)

Does Identify pick up on keen, and if not, should it?