May I ask how do you give out the lower numbers of new Kialaras?
First people to order get lower numbers?
What if someone buys 10 in one order, will they be consecutive numbers or random?
I rarely ship consecutive serials. Instead I try to divide up the lower serials between multiple orders. So for most buyers who purchased QTY 3 for example, I might send them #20, 50, 80. For serials 02 - 10 - I tend to include these in the larger orders from long-time customers. For this latest release a customer ordered QTY 15 for example, and they received a handful of low serials in return. (this customer frequents this site if they care to come forward) Others in this room purchased QTY 7, 9, 10, etc.
I try not to base the serials I ship strictly on the time of purchase, as mailchimp tends to deliver emails to different users over a window of time. But if you order early you will most certainly receive lower serial pieces than someone who orders after you.
If a customer has ordered QTY 5 of every release, I'll remember this and if they didn't get a low serial on one release, I'll try to make sure they do on the next.
It's not a perfect science. I value every customer and I do my best to try to please everyone. I keep zero of the low serials for myself. I planned to keep the 01's of the 1BTC Silver and Golds, but ended up shipping them to some VIP's.
Most importantly of all, I try to do what's in the best interest for the future value of my works, because then everyone wins.