Yeah, those Ebay-turkey-call snipers are always watching! Some of the calls from the third round went almost immediately and probably to said snipers. I noticed that well before the OR fundraiser started, but I obviously still have not acquired their skills,
I think Buy-It-Now is a good option (especially if it simplifies things), but it does run the risk of the call selling for far less than what it might get at auction. On the other side of the coin, some people don't like dealing with the auction scene and only look for buy-it-now items.
Here's one idea to help with the Ebay snipers, if that's even a concern: what about posting the upcoming round on OR before it goes to Ebay. For example, something like "5th batch of Fundraiser donated calls will be on Ebay 8/28/2014 beginning at X-o'clock central time" a day in advance. That might at least give the OR members a head start on the rest.