So...Which weapon? (Modeling Question)

I had some leftovers from a Chaos Knight sprue. I really kind of wanted all of my Raptors to have scythes, and these are pretty close to that. 

So what do you guys think? Small weapon or long weapon?

New Tau next August?

 So this is exciting:
http://www.belloflostsouls.net/2010/09/40k-rumors-tau.html