I added the following to the rules regarding bidding:
Note! The highest bidder doesn't always win the bidding contest! There are other factors, including team status, that affect which team's offer an item chooses.
And to be absolutely clear about how the bidding works: Every team makes bids for each item and when I've received all the bids (or when deadline for bids is passed) I will fill one of my OOo Calc speadsheets with the offers and calculate which team's offer a driver/supplier chooses.
So it doesn't matter whether you are the first or the last team to make your bids, as long as you make them before the deadline.
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13/15 have chosen their sponsors already. That is more than I expected! Perhaps we could get that bidding going today already