I see that you're still into peculiar builds.
This was posted in 2009 so I doubt anyone from then will be responding back. Without any resources/information at my disposal, I'd recommend that you use both weapons so that you can adapt to your circumstances. For example, you can switch to katar to sb, 1 dagger+shield (more defensive), and 2 dagger (max1mum damag3!!1!).
I sort of have to thank you for the necro though. Those screen shots on the first page brought back a wave of nostalgia for me (especially since that ninja that's getting attacked is one of my closer friends that I have met on this server).