(...)
Slush is paying more for the freshest calculations and much less for the older results.
So if the hashes are not getting to the pool before the block is found, then they will not count towards the payout. (The pool thinks you are skipping).
Late arrivals are not counted.
I agree but I also think there is a chance "late arrivals" may very well count towards the next block. I will see a low payout and the next block sometimes will make up for it as I thought the late shares get credited towards it?
Quote from Slush's Pool:-
How does bitcoin pool work?
Our server gives users blocks of very low difficulty to solve. Each solution found is registered as one 'share'. Occasionally, a solution will happen to also meet the full-strength difficulty requirements of the Bitcoin network, resulting in a successful 25 BTC minting.
This 25 BTC is divided among all of the users that contributed to that round, weighted by the number of shares that they earned. Therefore, the reward earned by a given user is given by the following formula:
(25 BTC + block fees - 2% fee) * (shares found by user's workers) / (total shares in current round)
Shares do not carry over from one round to the next. When the pool mine a block, only users who worked on that block are rewarded, and only for work they did on that block. This is an unavoidable consequence of the way that Bitcoin mining in general works.Late arrivals go in the bin
More generally, only useful work is rewarded. That means, if you happen to make a late submission for any block, not just the one found by our pool, your share will get refused and won't count. Simply, when the network finds a solution to the current block, everyone has to start new work on a/the* new block. The new work is different from the previous one, so there's no reason for rewarding late submissions.
*)
"A" new block from the network's point of view. Any pool operator / solo miner can create its own block from any of the transactions in the transaction pool.
"The" new block from the miners' point of view. "The" new block is created by Slush (his bitcoind) and we can't influence its contents.
[edit] minor edition for more clarity