Moggs,
When others dib on your seeds, you get partial tickets that add up to allow you to get more seeds from others. If you have highly sought after seeds that get snapped up the first day, you'll get 1/2 (0.5) ticket each. On the last couple of days it's only 1/10 (0.1) ticket. Seeds that are scarce (and sought after) get dibbed earlier than seeds with lots of offers. So, there's a balance one learns with experience.
Some like to split their listings, so someone who really wants more seed can dib on two packets of the same seed. You can leave your 10 packets listed, and maybe later in the week as things start to run out, someone will add it to their list and dib on it. The worst that will happen is that no one takes them, but since you have a native plant group to provide homes for them - you really can't lose.
