It still doesn't make any sense to me that someone that has not found a block in the last 80 blocks that the pool has found could have a share value so high. Matter of fact, the last block that xpm12 found was 46 hours ago. That is hundreds of blocks ago. Something is very wrong here.
The new reward system that comes with the experimental miner pays a little bit more than the other miners as an initiative for people to switch and for developers to implement it in their miners. It's also decoupled from shares and instead uses the estimated chance to find a block within a given timespan to reward the miner. It effectively removes the luck factor of finding good shares or blocks.
Previously, if two users with the exact same hardware configuration and the same miner version mined for 5 hours, their reward was vastly different. Just because one was luckier than the other. This is exactly the opposite of what pool mining is about. With pooled mining we try to decrease the spikes in the payout and make it more even for all. If someone finds no blocks he will still get paid for trying, if someone finds a lot of blocks he still gets paid the same amount.
If someone wants the full reward for being lucky then go for solo. In the end you should get about same amount of XPM from solo mining and pooled mining (minus pool fee)
Edit: I just checked the stats and it's kind of strange. The mentioned user has doubled his share value but still has not found a block. I will look into it.
Edit2: All fine, he just added a lot of machines and he found already enough blocks.
