QUOTE(Death Grunty @ Jun 30 2012, 20:12)

It means.. because you only see the highest bid you have no way of knowing what the result will be because the second highest bids counts as well.
Let's say the highest bid is 10000 and there are two guys with the highest bid, then yes you'd get 50% of the 10k. But if there's only one highest bid at 10000 and a second highest at 6000 the actual selling/buying price of the highest bidder would be 6001 and you'd get 50% of 6001. But again, you have no way of telling because you don't see how many bids there are on the highest bid or how high the second highest bids are.
Basically this.
QUOTE(Bunker Buster @ Jun 30 2012, 20:13)

That rule's been waived with the profit sharing thing, overbidders now pay the full price of what they bid.
No it's not. The high bid can kick in, but only if there are at least two equal or equal -1 credit bids.