I'm going to make a recipe from "Week In, Week Out" (Simon Hopkinson) tonight called "Fragrant Duck 'pilaf'". The pilaf is actually mung dal - which it says to rinse and drain. This gets baked for about 30 minutes at 350 degrees. However, my bag from Kalustyan's says to soak for 4 hours before use. So - should I be soaking these even though the recipe doesn't call for it?