Sorry, Newazzkikr; if nobody's responded by now I think you'll have to try the
Spring KnoboGanzaaaaaa route because the show ends in about 20 minutes and depending on where you're parked, hiking down to the range may take longer than that. (
http://machinegunshoot.com/pdf/2010_machine_gun_shoot_schedule.pdf). I don't know if the Busse Combat will continue to allow people to pre-arange payment, or if they'll formally state the rules, but that made proxying for those who did it much easier. The rules seemed to be:
1) You need to have placed an order with Busse Combat or set up an account with them so that they have your contact and payment information on-file.
2) Busse Combat employees are not allowed to proxy for you; they need to be free to maintain order at the tables.
3) If an attendee has agreed to proxy for you, and they can find the knives you want, all they need to do is hand those knives to the person who is checking folks out along with your contact information.
4) They fill out an invoice with the customer's contact info, and put it off to the side along with the knives your proxy gathered. I don't know if it was an error on their part, but if I'd wanted to pre-order knives for myself, I'd have had to pay a $40 deposit per knife, but I did not have to pay any out-of-pocket deposit for the people who'd made pre-arrangements.
5) Once they get back to the shop, those invoices will be processed and the associated knives sent out.
It takes extra time for the Busse Crew to do this, part of which seemed to be that the instructions were either told or understood differently from one person to the next. However, just in terms of additional paperwork, keeping reserved knives organized, and shipping individual orders, it's definitely more work for them. It makes proxying easier, which may generate more sales, but I don't know where the tipping point between extra sales and additional work is, so say "thank you" when dealing with the crew and we'll hope that/see if the practice continues.