I forgot to mention... a little trick we learned in pharmacy school when making capsules by hand. Take a spatula or butter knife and scoop up just a little bit and scrape it into the capsule a little at a time. Tap the capsule to remove air bubbles. Now, I have no idea what the consistency of this mixture is going to be, so I have no idea if this technique will work or not... but I'm sure a method similar to this would work with a little ingenuity.

How did you store the capsules? I think I'm putting them in the freezer in an airtight container.