Here's the logic for one bid:
As HBD is currently set up, I can see, almost to the dollar, how much each owner has left in prospect money. So I know how high I can bid to either win, or lose, a player. If I'm sitting on 33m and Owner B has 28m, I know I have to bid more than that. If he's not playing the same way I am, he may pull out at 14m so I get the player for just a dollar more and still have 19m. With one bid, I have to bid a dollar more than him right now. Therefore, I'm not getting another top IFA.