Is there any good way to practice vocabulary production cards in anki?
I recently finished doing core6k recognition cards, but now I would like to do core2k as production, so I can become accustomed to actually using those words.

On another note, my core6k anki deck does not have tags indicating which words are from core2k. Is there any reasonably quick way for me to sort the core2k cards out?

I worked on an Anki deck for a while drilling from English to Japanese. Before everyone jumps on me, yes, I know there's multiple ways to go. I just didn't get bent out of shape when I came with with an alternative sentence, and I only practiced the deck that way for a fairly short period, as an exercise. It was a small deck, for that matter, 600 cards, and I was just interested in some practice, not in memorizing the deck.