Keen Edge (Whetstone) and Piercing weapons

[electric mayhem]

Does the Keen Edge spell or the Whetstone (Keen edge) work on piercing weapons on the server?

I know the description says Slashing only, and on the NWN2 wiki page, there's an addendum that says it works on piercing, but I wanted to be sure there hasn't been any changes to counter that here.

Also.
Does applying Keen Edge spells on weapons also work with the extended critical range that weapon masters get?

[Blackman D]

weapon of impact is for blunt weapons

keen is for piercing and slashing weapons

improved crit feat (general) does not stack with either

WM improved crit does stack with both

[electric mayhem]

Thanks!

Upvoted great response.
Cheers.